Subtract 90/63 from 27/32, Solve 27/32

Subtract 90/63 from 27/32

1^st number: 27/32, 2^nd number: 1 27/63

27/32 - 90/63 is -131/224.

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 63 is 2016

Next, find the equivalent fraction of both fractional numbers with denominator 2016
For the 1st fraction, since 32 × 63 = 2016,
27/32 = 27 × 63/32 × 63 = 1701/2016
Likewise, for the 2nd fraction, since 63 × 32 = 2016,
90/63 = 90 × 32/63 × 32 = 2880/2016
Subtract the two like fractions:
1701/2016 - 2880/2016 = 1701 - 2880/2016 = -1179/2016
After reducing the fraction, the answer is -131/224

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