Subtract 45/63 from 15/2, Solve 7 1/2

Subtract 45/63 from 15/2

1^st number: 7 1/2, 2^nd number: 45/63

15/2 - 45/63 is 95/14.

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,
15/2 = 15 × 63/2 × 63 = 945/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
45/63 = 45 × 2/63 × 2 = 90/126
Subtract the two like fractions:
945/126 - 90/126 = 945 - 90/126 = 855/126
After reducing the fraction, the answer is 95/14
In mixed form: 611/14

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