Subtract 50/56 from 9/42
9/42 - 50/56 is -19/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
9/42 = 9 × 4/42 × 4 = 36/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
50/56 = 50 × 3/56 × 3 = 150/168 - Subtract the two like fractions:
36/168 - 150/168 = 36 - 150/168 = -114/168 - After reducing the fraction, the answer is -19/28
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