Subtract 56/63 from 30/54
30/54 - 56/63 is -1/3.
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,
30/54 = 30 × 7/54 × 7 = 210/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
56/63 = 56 × 6/63 × 6 = 336/378 - Subtract the two like fractions:
210/378 - 336/378 = 210 - 336/378 = -126/378 - After reducing the fraction, the answer is -1/3
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