Subtract 24/54 from 3/42
3/42 - 24/54 is -47/126.
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,
3/42 = 3 × 9/42 × 9 = 27/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
24/54 = 24 × 7/54 × 7 = 168/378 - Subtract the two like fractions:
27/378 - 168/378 = 27 - 168/378 = -141/378 - After reducing the fraction, the answer is -47/126
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