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I need help with this sum.
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I need help with this sum.

I need help with this sum.-example-1
User Andrin
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Jennifer started off with 16/21 of a meter
User Feanor
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First you have to make the denominators the same by multiplying 2/7 by 3. When you do that you would get 6/21. Now that you have the denominators the same you would had both of the fraction together to figure out what she started with. 
User Jonafato
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