I needed this about 3 months ago...Butterfly method for adding and subtracting fractions...GENIUS!!

I needed this about 3 months ago...Butterfly method for adding and subtracting fractions...GENIUS!!

I needed this about 3 months ago...Butterfly method for adding and subtracting fractions...GENIUS!!

I needed this about 3 months ago...Butterfly method for adding and subtracting fractions...GENIUS!!

I needed this about 3 months ago...Butterfly method for adding and subtracting fractions...GENIUS!!

I needed this about 3 months ago...Butterfly method for adding and subtracting fractions...GENIUS!!

I needed this about 3 months ago...Butterfly method for adding and subtracting fractions...GENIUS!!

I needed this about 3 months ago...Butterfly method for adding and subtracting fractions...GENIUS!!

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