Subtract 21/18 from 7/32, Solve 7/32

Subtract 21/18 from 7/32

1^st number: 7/32, 2^nd number: 1 3/18

7/32 - 21/18 is -91/96.

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 18 is 288

Next, find the equivalent fraction of both fractional numbers with denominator 288
For the 1st fraction, since 32 × 9 = 288,
7/32 = 7 × 9/32 × 9 = 63/288
Likewise, for the 2nd fraction, since 18 × 16 = 288,
21/18 = 21 × 16/18 × 16 = 336/288
Subtract the two like fractions:
63/288 - 336/288 = 63 - 336/288 = -273/288
After reducing the fraction, the answer is -91/96

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