Subtract 21/72 from 32/84, Solve 32/84

Subtract 21/72 from 32/84

32/84 - 21/72 is 5/56.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 84 × 6 = 504,
32/84 = 32 × 6/84 × 6 = 192/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
21/72 = 21 × 7/72 × 7 = 147/504
Subtract the two like fractions:
192/504 - 147/504 = 192 - 147/504 = 45/504
After reducing the fraction, the answer is 5/56

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