Subtract 2/32 from 15/21, Solve 15/21

Subtract 2/32 from 15/21

15/21 - 2/32 is 73/112.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 21 × 32 = 672,
15/21 = 15 × 32/21 × 32 = 480/672
Likewise, for the 2nd fraction, since 32 × 21 = 672,
2/32 = 2 × 21/32 × 21 = 42/672
Subtract the two like fractions:
480/672 - 42/672 = 480 - 42/672 = 438/672
After reducing the fraction, the answer is 73/112

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