Subtract 20/42 from 4/75
4/75 - 20/42 is -74/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
4/75 = 4 × 14/75 × 14 = 56/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
20/42 = 20 × 25/42 × 25 = 500/1050 - Subtract the two like fractions:
56/1050 - 500/1050 = 56 - 500/1050 = -444/1050 - After reducing the fraction, the answer is -74/175
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