Subtract 18/10 from 20/54
1st number: 20/54, 2nd number: 1 8/10
20/54 - 18/10 is -193/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
20/54 = 20 × 5/54 × 5 = 100/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
18/10 = 18 × 27/10 × 27 = 486/270 - Subtract the two like fractions:
100/270 - 486/270 = 100 - 486/270 = -386/270 - After reducing the fraction, the answer is -193/135
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