Subtract 45/32 from 56/63, Solve 56/63

Subtract 45/32 from 56/63

1^st number: 56/63, 2^nd number: 1 13/32

56/63 - 45/32 is -149/288.

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

Next, find the equivalent fraction of both fractional numbers with denominator 2016
For the 1st fraction, since 63 × 32 = 2016,
56/63 = 56 × 32/63 × 32 = 1792/2016
Likewise, for the 2nd fraction, since 32 × 63 = 2016,
45/32 = 45 × 63/32 × 63 = 2835/2016
Subtract the two like fractions:
1792/2016 - 2835/2016 = 1792 - 2835/2016 = -1043/2016
After reducing the fraction, the answer is -149/288

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