Subtract 12/63 from 3/54
3/54 - 12/63 is -17/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
3/54 = 3 × 7/54 × 7 = 21/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
12/63 = 12 × 6/63 × 6 = 72/378 - Subtract the two like fractions:
21/378 - 72/378 = 21 - 72/378 = -51/378 - After reducing the fraction, the answer is -17/126
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