Subtract 90/24 from 1/63, Solve 1/63

Subtract 90/24 from 1/63

1^st number: 1/63, 2^nd number: 3 18/24

1/63 - 90/24 is -941/252.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 24 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 63 × 8 = 504,
1/63 = 1 × 8/63 × 8 = 8/504
Likewise, for the 2nd fraction, since 24 × 21 = 504,
90/24 = 90 × 21/24 × 21 = 1890/504
Subtract the two like fractions:
8/504 - 1890/504 = 8 - 1890/504 = -1882/504
After reducing the fraction, the answer is -941/252

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