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

Subtract 12/15 from 6/63

6/63 - 12/15 is -74/105.

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

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 63 × 5 = 315,
6/63 = 6 × 5/63 × 5 = 30/315
Likewise, for the 2nd fraction, since 15 × 21 = 315,
12/15 = 12 × 21/15 × 21 = 252/315
Subtract the two like fractions:
30/315 - 252/315 = 30 - 252/315 = -222/315
After reducing the fraction, the answer is -74/105

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