Subtract 80/12 from 18/63
1st number: 18/63, 2nd number: 6 8/12
18/63 - 80/12 is -134/21.
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,
18/63 = 18 × 4/63 × 4 = 72/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
80/12 = 80 × 21/12 × 21 = 1680/252 - Subtract the two like fractions:
72/252 - 1680/252 = 72 - 1680/252 = -1608/252 - After reducing the fraction, the answer is -134/21
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