Subtract 12/18 from 7/63
7/63 - 12/18 is -5/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
7/63 = 7 × 2/63 × 2 = 14/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
12/18 = 12 × 7/18 × 7 = 84/126 - Subtract the two like fractions:
14/126 - 84/126 = 14 - 84/126 = -70/126 - After reducing the fraction, the answer is -5/9
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