Subtract 15/63 from 8/2, Solve 4 0/2

Subtract 15/63 from 8/2

1^st number: 4 0/2, 2^nd number: 15/63

8/2 - 15/63 is 79/21.

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,
8/2 = 8 × 63/2 × 63 = 504/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
15/63 = 15 × 2/63 × 2 = 30/126
Subtract the two like fractions:
504/126 - 30/126 = 504 - 30/126 = 474/126
After reducing the fraction, the answer is 79/21
In mixed form: 316/21

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