Butterfly method for adding and subtracting fractions...genius! Why didn't someone teach me this way?

Butterfly method for adding and subtracting fractions...genius! Why didn't someone teach me this way?

Electrical Engineering Community's Tools - geometry reference sheet - many more on this site

Electrical Engineering Community's Tools - geometry reference sheet - many more on this site

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 :)

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 :)

Fraction Decimal Percent Conversion Cheat Sheet and/or Foldable - Math to the Core - TeachersPayTeachers.com

Fraction Decimal Percent Conversion Cheat Sheet and/or Foldable - Math to the Core - TeachersPayTeachers.com

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