Subtract 15/35 from 32/84, Solve 32/84

Subtract 15/35 from 32/84

32/84 - 15/35 is -1/21.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 35 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
32/84 = 32 × 5/84 × 5 = 160/420
Likewise, for the 2nd fraction, since 35 × 12 = 420,
15/35 = 15 × 12/35 × 12 = 180/420
Subtract the two like fractions:
160/420 - 180/420 = 160 - 180/420 = -20/420
After reducing the fraction, the answer is -1/21

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