Subtract 54/27 from 18/20
1st number: 18/20, 2nd number: 2 0/27
18/20 - 54/27 is -11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
18/20 = 18 × 27/20 × 27 = 486/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
54/27 = 54 × 20/27 × 20 = 1080/540 - Subtract the two like fractions:
486/540 - 1080/540 = 486 - 1080/540 = -594/540 - After reducing the fraction, the answer is -11/10
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