Subtract 90/63 from 3/2, Solve 1 1/2

Subtract 90/63 from 3/2

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

3/2 - 90/63 is 1/14.

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,
90/63 = 90 × 2/63 × 2 = 180/126
Subtract the two like fractions:
189/126 - 180/126 = 189 - 180/126 = 9/126
After reducing the fraction, the answer is 1/14

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