Subtract 18/54 from 8/7
1st number: 1 1/7, 2nd number: 18/54
8/7 - 18/54 is 17/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
8/7 = 8 × 54/7 × 54 = 432/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
18/54 = 18 × 7/54 × 7 = 126/378 - Subtract the two like fractions:
432/378 - 126/378 = 432 - 126/378 = 306/378 - After reducing the fraction, the answer is 17/21
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