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Posted by Abigail on Wednesday, April 9, 2014 at 7:26pm.
Jessica says she can add 1/3"2/6"3/9"4/12"and 5/15 together using mental math.Explain how she can do this.
All of these 5 fractions are equivalents of 1/3. Jessica multiplies 1/3 by 5.
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