Subtract 3/42 from 21/50
21/50 - 3/42 is 61/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
21/50 = 21 × 21/50 × 21 = 441/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
3/42 = 3 × 25/42 × 25 = 75/1050 - Subtract the two like fractions:
441/1050 - 75/1050 = 441 - 75/1050 = 366/1050 - After reducing the fraction, the answer is 61/175
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