Subtract 7/20 from 20/63
20/63 - 7/20 is -41/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 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 20 × 63 = 1260,
7/20 = 7 × 63/20 × 63 = 441/1260 - Subtract the two like fractions:
400/1260 - 441/1260 = 400 - 441/1260 = -41/1260
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