Subtract 63/12 from 20/63
1st number: 20/63, 2nd number: 5 3/12
20/63 - 63/12 is -1243/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
63/12 = 63 × 21/12 × 21 = 1323/252 - Subtract the two like fractions:
80/252 - 1323/252 = 80 - 1323/252 = -1243/252
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