Subtract 21/75 from 10/84
10/84 - 21/75 is -169/1050.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
10/84 = 10 × 25/84 × 25 = 250/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
21/75 = 21 × 28/75 × 28 = 588/2100 - Subtract the two like fractions:
250/2100 - 588/2100 = 250 - 588/2100 = -338/2100 - After reducing the fraction, the answer is -169/1050
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