Subtract 9/42 from 5/27
5/27 - 9/42 is -11/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
5/27 = 5 × 14/27 × 14 = 70/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
9/42 = 9 × 9/42 × 9 = 81/378 - Subtract the two like fractions:
70/378 - 81/378 = 70 - 81/378 = -11/378
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