Subtract 14/63 from 54/15, Solve 3 9/15

Subtract 14/63 from 54/15

1^st number: 3 9/15, 2^nd number: 14/63

54/15 - 14/63 is 152/45.

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,
54/15 = 54 × 21/15 × 21 = 1134/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
14/63 = 14 × 5/63 × 5 = 70/315
Subtract the two like fractions:
1134/315 - 70/315 = 1134 - 70/315 = 1064/315
After reducing the fraction, the answer is 152/45
In mixed form: 317/45

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