Subtract 81/8 from 3/63, Solve 3/63

Subtract 81/8 from 3/63

1^st number: 3/63, 2^nd number: 10 1/8

3/63 - 81/8 is -1693/168.

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

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 63 × 8 = 504,
3/63 = 3 × 8/63 × 8 = 24/504
Likewise, for the 2nd fraction, since 8 × 63 = 504,
81/8 = 81 × 63/8 × 63 = 5103/504
Subtract the two like fractions:
24/504 - 5103/504 = 24 - 5103/504 = -5079/504
After reducing the fraction, the answer is -1693/168

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