Subtract 56/63 from 3/2, Solve 1 1/2

Subtract 56/63 from 3/2

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

3/2 - 56/63 is 11/18.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 2 × 63 = 126,
3/2 = 3 × 63/2 × 63 = 189/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
56/63 = 56 × 2/63 × 2 = 112/126
Subtract the two like fractions:
189/126 - 112/126 = 189 - 112/126 = 77/126
After reducing the fraction, the answer is 11/18

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