Subtract 18/54 from 35/42
35/42 - 18/54 is 1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
35/42 = 35 × 9/42 × 9 = 315/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
18/54 = 18 × 7/54 × 7 = 126/378 - Subtract the two like fractions:
315/378 - 126/378 = 315 - 126/378 = 189/378 - After reducing the fraction, the answer is 1/2
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