Subtract 3/20 from 9/63
9/63 - 3/20 is -1/140.
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,
9/63 = 9 × 20/63 × 20 = 180/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
3/20 = 3 × 63/20 × 63 = 189/1260 - Subtract the two like fractions:
180/1260 - 189/1260 = 180 - 189/1260 = -9/1260 - After reducing the fraction, the answer is -1/140
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