Subtract 27/21 from 63/32, Solve 1 31/32

Subtract 27/21 from 63/32

1^st number: 1 31/32, 2^nd number: 1 6/21

63/32 - 27/21 is 153/224.

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

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 32 × 21 = 672,
63/32 = 63 × 21/32 × 21 = 1323/672
Likewise, for the 2nd fraction, since 21 × 32 = 672,
27/21 = 27 × 32/21 × 32 = 864/672
Subtract the two like fractions:
1323/672 - 864/672 = 1323 - 864/672 = 459/672
After reducing the fraction, the answer is 153/224

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