Subtract 16/27 from 10/42
10/42 - 16/27 is -67/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
10/42 = 10 × 9/42 × 9 = 90/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
16/27 = 16 × 14/27 × 14 = 224/378 - Subtract the two like fractions:
90/378 - 224/378 = 90 - 224/378 = -134/378 - After reducing the fraction, the answer is -67/189
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