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OpenStudy (anonymous):
do you need the same denominators when subtracting fractions?? in my case 7 over 4 minus 2 (which i made 2/1 is that right?) is it 5 over 3?
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OpenStudy (anonymous):
yes you need same denominators when subtracting. it is concept of adding/subtracting like items
OpenStudy (anonymous):
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