Subtract 42/75 from 20/56
20/56 - 42/75 is -71/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 75 is 4200
Next, find the equivalent fraction of both fractional numbers with denominator 4200 - For the 1st fraction, since 56 × 75 = 4200,
20/56 = 20 × 75/56 × 75 = 1500/4200 - Likewise, for the 2nd fraction, since 75 × 56 = 4200,
42/75 = 42 × 56/75 × 56 = 2352/4200 - Subtract the two like fractions:
1500/4200 - 2352/4200 = 1500 - 2352/4200 = -852/4200 - After reducing the fraction, the answer is -71/350
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