Subtract 12/24 from 21/49
21/49 - 12/24 is -1/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 24 is 1176
Next, find the equivalent fraction of both fractional numbers with denominator 1176 - For the 1st fraction, since 49 × 24 = 1176,
21/49 = 21 × 24/49 × 24 = 504/1176 - Likewise, for the 2nd fraction, since 24 × 49 = 1176,
12/24 = 12 × 49/24 × 49 = 588/1176 - Subtract the two like fractions:
504/1176 - 588/1176 = 504 - 588/1176 = -84/1176 - After reducing the fraction, the answer is -1/14
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