Subtract 28/32 from 5/7, Solve 5/7

Subtract 28/32 from 5/7

5/7 - 28/32 is -9/56.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 32 is 224

Next, find the equivalent fraction of both fractional numbers with denominator 224
For the 1st fraction, since 7 × 32 = 224,
5/7 = 5 × 32/7 × 32 = 160/224
Likewise, for the 2nd fraction, since 32 × 7 = 224,
28/32 = 28 × 7/32 × 7 = 196/224
Subtract the two like fractions:
160/224 - 196/224 = 160 - 196/224 = -36/224
After reducing the fraction, the answer is -9/56

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