Subtract 27/49 from 16/42
16/42 - 27/49 is -25/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
16/42 = 16 × 7/42 × 7 = 112/294 - Likewise, for the 2nd fraction, since 49 × 6 = 294,
27/49 = 27 × 6/49 × 6 = 162/294 - Subtract the two like fractions:
112/294 - 162/294 = 112 - 162/294 = -50/294 - After reducing the fraction, the answer is -25/147
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