Subtract 54/4 from 20/27
1st number: 20/27, 2nd number: 13 2/4
20/27 - 54/4 is -689/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 4 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
20/27 = 20 × 4/27 × 4 = 80/108 - Likewise, for the 2nd fraction, since 4 × 27 = 108,
54/4 = 54 × 27/4 × 27 = 1458/108 - Subtract the two like fractions:
80/108 - 1458/108 = 80 - 1458/108 = -1378/108 - After reducing the fraction, the answer is -689/54
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