Subtract 42/70 from 8/32
8/32 - 42/70 is -7/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 70 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 32 × 35 = 1120,
8/32 = 8 × 35/32 × 35 = 280/1120 - Likewise, for the 2nd fraction, since 70 × 16 = 1120,
42/70 = 42 × 16/70 × 16 = 672/1120 - Subtract the two like fractions:
280/1120 - 672/1120 = 280 - 672/1120 = -392/1120 - After reducing the fraction, the answer is -7/20
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