Subtract 15/63 from 1/8, Solve 1/8

Subtract 15/63 from 1/8

1/8 - 15/63 is -19/168.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 8 × 63 = 504,
1/8 = 1 × 63/8 × 63 = 63/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
15/63 = 15 × 8/63 × 8 = 120/504
Subtract the two like fractions:
63/504 - 120/504 = 63 - 120/504 = -57/504
After reducing the fraction, the answer is -19/168

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