Subtract 90/63 from 27/16, Solve 1 11/16

Subtract 90/63 from 27/16

1^st number: 1 11/16, 2^nd number: 1 27/63

27/16 - 90/63 is 29/112.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 63 is 1008

Next, find the equivalent fraction of both fractional numbers with denominator 1008
For the 1st fraction, since 16 × 63 = 1008,
27/16 = 27 × 63/16 × 63 = 1701/1008
Likewise, for the 2nd fraction, since 63 × 16 = 1008,
90/63 = 90 × 16/63 × 16 = 1440/1008
Subtract the two like fractions:
1701/1008 - 1440/1008 = 1701 - 1440/1008 = 261/1008
After reducing the fraction, the answer is 29/112

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