Subtract 42/36 from 20/63
1st number: 20/63, 2nd number: 1 6/36
20/63 - 42/36 is -107/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
42/36 = 42 × 7/36 × 7 = 294/252 - Subtract the two like fractions:
80/252 - 294/252 = 80 - 294/252 = -214/252 - After reducing the fraction, the answer is -107/126
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