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Why didn't anyone know about this when I learned how to reduce fractions?

9 comments

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#### Ultimate Math Sheet / 2 color sets, designed for A Beka but works for any curriculum || Le Chaim (on the right) blog

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Adding and subtracting fractions with different denominators...very neat!

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#### An alternative method for adding and subtracting fractions with different denominators. I've never seen this before, but very interesting!

#### An alternative method for adding and subtracting fractions with different denominators. I've never seen this before, but it has the same thinking as the "butterfly" approach! No conceptual understanding with this method.

#### An alternative method for adding and subtracting fractions with different denominators. I've never seen this before, but very interesting! My only question is how to handle borrowing on the subtraction...

#### An alternative method for adding and subtracting fractions with different denominators. Quite interesting!

#### An alternative method for adding and subtracting fractions with different denominators. I've never seen this before, but very interesting! SAME AS CROSS-MULTIPLY ADD AND MULTIPLY DENOMINATORS

#### An alternative method for adding and subtracting fractions with different denominators. This might just be the answer for some of my struggling students!

#### An alternative method for adding and subtracting fractions with different denominators. I had forgotten this. My students will be excited!

#### cool way to teach adding subtraction fractions with different denominators

#### Still can't add and subtract fractions? Try this...

I am literally speechless. This technique = "SO SIMPLE - how to teach long division in 3 minutes or less ohmyword - where has this been my whole life?!

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#### Yaaaayy!!! I didn't even remember how to do this anymore. This will be so helpful since I'm not exactly a whiz-kid @ math.

#### SO SIMPLE - how to teach long division in 3 minutes or less ohmyword - where has this been my whole life?! #homeschool #math

#### "Short division." Why don't kids learn it this way?! This is how I'm going to help my students struggling with long division.

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#### My girls prefer this method to writing it all out. However I made sure they knew the traditional way first. SO SIMPLE - how to teach long division in 3 minutes or less #homeschool #education #math

#### SO SIMPLE - how to teach long division in 3 minutes or less #homeschool #education #math - share this with Ms. Klau

#### Haven't looked at this, so don't know the simple" yet, but need to check it out. SO SIMPLE - how to teach long division in 3 minutes or less ohmyword - where has this been my whole life?! #homeschool #education #math

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Simplify Fractions ...this is a different approach, and could really help some students!

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#### Courtney Lush - Simplify Fractions ...this is a different approach, and could really help some students!

#### Simplify Fractions ...this could be useful for flip classroom as student homework to watch before teaching concept

#### content > maths > fractions + decimals - simplifying fractions

#### Simplify fractions easily with this video tutorial

#### Simplify Fractions ...this is a different approach

#### Simplify Fractions video! So easy!

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easy tips/games for fractions Mr. Gardner came up with a general rule to generate such fractions. In fact, there are eight interesting(*) fractions of this type below 100: 16 / 64 = 1 / 4 19 / 95 = 1 / 5 26 / 65 = 2 / 5 49 / 98 = 4 / 8 64 / 16 = 4 / 1 65 / 26 = 5 / 2 95 / 19 = 5 / 1 98 / 49 = 8 / 4

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#### I actually used this once and it actually worked, but unless you're like in 3rd grade you should already know this... I guess if you homeschool though...

#### easy tips/games for fractions In fact, there are eight interesting(*) fractions of this type below 100: 16 / 64 = 1 / 4 19 / 95 = 1 / 5 26 / 65 = 2 / 5 49 / 98 = 4 / 8 64 / 16 = 4 / 1 65 / 26 = 5 / 2 95 / 19 = 5 / 1 98 / 49 = 8 / 4

Wow... I don't how this guy figured this out, but he is a genius. Trick to multiplication tables 6X6 and above... I knew tricks for 9s, but not 6s, 7s, and 8s!!

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#### Great for kids who have difficulty memorizing times tables.-- Trick to multiplication tables 6X6 and above. - I knew the 9's trick, but have never seen this one before!

#### Wow... I don't how this guy figured this out, but he is a genius! Finger trick to learn multiplication tables from 6X6 to 10X10.

#### i have heard of the 9's multiplication trick on your hands but not this one. This could help with learning/teaching multiplication tables.

#### I knew the hand trick for the 9's times tables, but I've never seen this one. It seems a bit complicated for little kids, but maybe I'm underestimating them! Could definitely help some adults who have forgotten grade school math! A trick for figuring out times tables 6x6 - 10x10.

#### Multiplication Finger Tricks --- maybe this will help some kids learn there multiplication facts better

#### Oh my goodness gracious.. This is FANTASTIC!!!!! Multiplication trick 6 x 6 - 10 x 10. This is even better than the x9 finger trick!

#### Multiplication Finger Tricks - um...COULD be good; but what would be even better is if my kiddos would LEARN THEIR MULTIPLICATION FACTS!!!!!!!!!!!!!!!!!!

#### Oh my goodness! Multiplication trick 6 x 6 - 10 x 10. This is even better than the x9 finger trick!

#### Trick to multiplication tables 6X6 and above. I need all the math help I can get. :)

How To Learn Times Tables - I would have never thought that these six numbers would be all I really need.

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#### How To Learn Times Tables - It comes down to these six numbers. Site lays it out for kids and parents very clearly and will hopefully get them motivated!

#### How To Learn Times Tables - I would have never thought that these six numbers would be all I really need. Site lays it out for kids and parents very clearly and will hopefully get them motivated!

#### TO MAKE MULTIPLICATION FACTS LESS OVERWHELMNING!!! How To Learn Times Tables - I would have never thought that these six numbers would be all I really need.

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Our Fraction and Nomenclature cards are a great hands-on learning tool for introducing fractions to your students. Fraction work includes definitions, division, subtraction, multiplication and addition.

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#### This is a fabulous website for kids learning algebra (and parents/teachers trying to explain it, lol).

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#### SHUT.THE.FRONT.DOOR.Type in your algebra problem and this software shows you how to get the answer. This would have come in handy when I tried to take that math class...

#### Type in your algebra problem and this software shows you how to get the answer. WHERE HAVE YOU BEEN ALL MY LIFE? Hallelujah. I'll be glad I pinned this for algebra 2. :)

#### SHUT.THE.FRONT.DOOR.Type in your algebra problem and this software shows you how to get the answer. I have to re-take my math class so maybe this will help!

copy this and put in homework folder

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#### copy this and put in homework folder or have students create their own math reference sheet (could be an assignment)

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Math Tricks. It's a pretty cool trick!

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This article shows you how to multiply fractions in four easy steps. How do you multiply mixed numbers? What is an improper fraction? This article, which includes a short video, will answer all these questions and leave you with the knowledge and confidence to multiply any fractions.

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Awesome!

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#### Fraction Hopscotch; even though this is probably too low level for high school math I love the idea.

#### LOVE THIS!! Fraction hopscotch. This would be a fun way to get students interested in math. Instead of just doing worksheets, this gets them actively involved and they can visually learn equivalent fractions while playing a fun game.

#### Imperishably Beautiful: {Teaching} Fraction Hopscotch Allison's adaptations: kids name an equivalent fraction, compare the 2 fractions, add or subtract 2 fractions etc... ok this is fun

#### {Teaching} Fraction Hopscotch except i would put the equivalent fractions in order with lowest denominator on the left and highest denominator on the right. ie. 1/2, 2/4, 4/8.

#### {Teaching} Fraction Hopscotch: kids name an equivalent fraction, compare the 2 fractions, add or subtract 2 fractions etc.

#### Integrating math: Fraction Hopscotch - The students stand on "ZERO" and lightly roll a balled up piece of paper onto a fraction. Then they hop on the squares and SAY the name of each fraction. When they land on a double they have to name the equivalent fractions (One fourth is equal to two eighths)

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#### Math trick - actually my math teacher did teach me this. Also, if you add the two numbers together in the answer, they equal 9. Exp: 9x2=18 , 1+8=9. Neat huh?

#### Mind. Blown. (Jen's note: I DID teach my students this... And showed them the hand trick for 9s too!) (my 4th grade teacher taught us this and the hand trick too! Made life so much easier!)

#### Apparently, the math teacher wasn't teaching proper English. Regardless, great info for times tables.

#### Mind. Blown. (Jen's note: I DID teach my students this... And showed them the hand trick for 9s too!)

#### mind. blown. Seriously had my math teacher taught me this I would have understood so much more!!!

#### Mind. Blown. Didn't know there was a way to dislike my Math teachers even more... huh.

#### The one math trick my mom taught me...

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I don't think i ever knew this... i always used the (ex. 9x3= the number below the # being multipled by 9 .. like 2 then the second number is whatever is added to get 9 ... answer 7)... hope that makes sense lol :)

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#### Previous pinner: for the kiddo - multiplying by 9 using your fingers Me: for the website - haven't looked at it yet, but the address is neat

#### for the kiddo - multiplying by 9 using your fingers....Awesome! I remember being taught this in elementary school YEARS ago!

#### ex. 9x3= the number below the # being multipled by 9 .. like 2 then the second number is whatever is added to get 9 ... answer 7)... hope that makes sense lol :)

#### <font size="2" Props to my 3rd grade teacher for this one - Mrs.Wootton, if you're out there, hi. Math tricks are so sweet! This one will help you with multiplying 9 by any single...

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Why didn't anyone know about this when I learned how to reduce fractions? - Because it doesn't actually work! Do you really think 17/74 = 1/4? This is not a valid method for simplifying fractions; it is a coincidence pointed out by Martin Gardner in one of his math columns.

simplifying fractions trick - this will only work if the same digit is in the numerator and denominator

Need to know how to simplify fractions? Do they have the same number in the numerator and denominator? Try this fractions trick.

Reducing fractions trick - soooo simple!

EASY MATH TRICK to reduce fractions?

Math trick for reducing fractions.

Great reducing fractions trick :o)

Reducing fractions trick.....

MATH/FRACTIONS