Subtract 20/70 from 4/32
4/32 - 20/70 is -9/56.
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,
4/32 = 4 × 35/32 × 35 = 140/1120 - Likewise, for the 2nd fraction, since 70 × 16 = 1120,
20/70 = 20 × 16/70 × 16 = 320/1120 - Subtract the two like fractions:
140/1120 - 320/1120 = 140 - 320/1120 = -180/1120 - After reducing the fraction, the answer is -9/56
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