Subtract 27/4 from 20/54
1st number: 20/54, 2nd number: 6 3/4
20/54 - 27/4 is -689/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 4 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 54 × 2 = 108,
20/54 = 20 × 2/54 × 2 = 40/108 - Likewise, for the 2nd fraction, since 4 × 27 = 108,
27/4 = 27 × 27/4 × 27 = 729/108 - Subtract the two like fractions:
40/108 - 729/108 = 40 - 729/108 = -689/108
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