Subtract 40/60 from 20/63
20/63 - 40/60 is -22/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 60 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
20/63 = 20 × 20/63 × 20 = 400/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
40/60 = 40 × 21/60 × 21 = 840/1260 - Subtract the two like fractions:
400/1260 - 840/1260 = 400 - 840/1260 = -440/1260 - After reducing the fraction, the answer is -22/63
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