Subtract 8/42 from 4/32
4/32 - 8/42 is -11/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 42 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
4/32 = 4 × 21/32 × 21 = 84/672 - Likewise, for the 2nd fraction, since 42 × 16 = 672,
8/42 = 8 × 16/42 × 16 = 128/672 - Subtract the two like fractions:
84/672 - 128/672 = 84 - 128/672 = -44/672 - After reducing the fraction, the answer is -11/168
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