Subtract 8/63 from 80/15, Solve 5 5/15

Subtract 8/63 from 80/15

1^st number: 5 5/15, 2^nd number: 8/63

80/15 - 8/63 is 328/63.

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,
80/15 = 80 × 21/15 × 21 = 1680/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
8/63 = 8 × 5/63 × 5 = 40/315
Subtract the two like fractions:
1680/315 - 40/315 = 1680 - 40/315 = 1640/315
After reducing the fraction, the answer is 328/63
In mixed form: 513/63

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