Subtract 18/32 from 20/75
20/75 - 18/32 is -71/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 32 is 2400
Next, find the equivalent fraction of both fractional numbers with denominator 2400 - For the 1st fraction, since 75 × 32 = 2400,
20/75 = 20 × 32/75 × 32 = 640/2400 - Likewise, for the 2nd fraction, since 32 × 75 = 2400,
18/32 = 18 × 75/32 × 75 = 1350/2400 - Subtract the two like fractions:
640/2400 - 1350/2400 = 640 - 1350/2400 = -710/2400 - After reducing the fraction, the answer is -71/240
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