Subtract 2/54 from 15/20
15/20 - 2/54 is 77/108.
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,
15/20 = 15 × 27/20 × 27 = 405/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
2/54 = 2 × 10/54 × 10 = 20/540 - Subtract the two like fractions:
405/540 - 20/540 = 405 - 20/540 = 385/540 - After reducing the fraction, the answer is 77/108
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