Subtract 70/63 from 30/54
1st number: 30/54, 2nd number: 1 7/63
30/54 - 70/63 is -5/9.
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,
70/63 = 70 × 6/63 × 6 = 420/378 - Subtract the two like fractions:
210/378 - 420/378 = 210 - 420/378 = -210/378 - After reducing the fraction, the answer is -5/9
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