Subtract 7/54 from 2/20
2/20 - 7/54 is -4/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
2/20 = 2 × 27/20 × 27 = 54/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
7/54 = 7 × 10/54 × 10 = 70/540 - Subtract the two like fractions:
54/540 - 70/540 = 54 - 70/540 = -16/540 - After reducing the fraction, the answer is -4/135
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