Subtract 42/8 from 20/63
1st number: 20/63, 2nd number: 5 2/8
20/63 - 42/8 is -1243/252.
Steps for subtracting fractions
- 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,
20/63 = 20 × 8/63 × 8 = 160/504 - Likewise, for the 2nd fraction, since 8 × 63 = 504,
42/8 = 42 × 63/8 × 63 = 2646/504 - Subtract the two like fractions:
160/504 - 2646/504 = 160 - 2646/504 = -2486/504 - After reducing the fraction, the answer is -1243/252
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