Subtract 20/54 from 15/49
15/49 - 20/54 is -85/1323.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 54 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 49 × 54 = 2646,
15/49 = 15 × 54/49 × 54 = 810/2646 - Likewise, for the 2nd fraction, since 54 × 49 = 2646,
20/54 = 20 × 49/54 × 49 = 980/2646 - Subtract the two like fractions:
810/2646 - 980/2646 = 810 - 980/2646 = -170/2646 - After reducing the fraction, the answer is -85/1323
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