Subtract 3/63 from 9/20
9/20 - 3/63 is 169/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
9/20 = 9 × 63/20 × 63 = 567/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
3/63 = 3 × 20/63 × 20 = 60/1260 - Subtract the two like fractions:
567/1260 - 60/1260 = 567 - 60/1260 = 507/1260 - After reducing the fraction, the answer is 169/420
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