Subtract 28/32 from 28/72, Solve 28/72

Subtract 28/32 from 28/72

28/72 - 28/32 is -35/72.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 32 is 288

Next, find the equivalent fraction of both fractional numbers with denominator 288
For the 1st fraction, since 72 × 4 = 288,
28/72 = 28 × 4/72 × 4 = 112/288
Likewise, for the 2nd fraction, since 32 × 9 = 288,
28/32 = 28 × 9/32 × 9 = 252/288
Subtract the two like fractions:
112/288 - 252/288 = 112 - 252/288 = -140/288
After reducing the fraction, the answer is -35/72

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