Subtract 12/21 from 21/50
21/50 - 12/21 is -53/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 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 21 × 50 = 1050,
12/21 = 12 × 50/21 × 50 = 600/1050 - Subtract the two like fractions:
441/1050 - 600/1050 = 441 - 600/1050 = -159/1050 - After reducing the fraction, the answer is -53/350
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