Subtract 6/63 from 72/15, Solve 4 12/15

Subtract 6/63 from 72/15

1^st number: 4 12/15, 2^nd number: 6/63

72/15 - 6/63 is 494/105.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 15 × 21 = 315,
72/15 = 72 × 21/15 × 21 = 1512/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
6/63 = 6 × 5/63 × 5 = 30/315
Subtract the two like fractions:
1512/315 - 30/315 = 1512 - 30/315 = 1482/315
After reducing the fraction, the answer is 494/105
In mixed form: 474/105

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