Subtract 3/20 from 12/63
12/63 - 3/20 is 17/420.
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,
12/63 = 12 × 20/63 × 20 = 240/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
3/20 = 3 × 63/20 × 63 = 189/1260 - Subtract the two like fractions:
240/1260 - 189/1260 = 240 - 189/1260 = 51/1260 - After reducing the fraction, the answer is 17/420
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