Subtract 27/42 from 18/48
18/48 - 27/42 is -15/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
18/48 = 18 × 7/48 × 7 = 126/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
27/42 = 27 × 8/42 × 8 = 216/336 - Subtract the two like fractions:
126/336 - 216/336 = 126 - 216/336 = -90/336 - After reducing the fraction, the answer is -15/56
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