Subtract 20/32 from 4/70
4/70 - 20/32 is -159/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 32 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 70 × 16 = 1120,
4/70 = 4 × 16/70 × 16 = 64/1120 - Likewise, for the 2nd fraction, since 32 × 35 = 1120,
20/32 = 20 × 35/32 × 35 = 700/1120 - Subtract the two like fractions:
64/1120 - 700/1120 = 64 - 700/1120 = -636/1120 - After reducing the fraction, the answer is -159/280
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