Subtract 20/54 from 1/4
1/4 - 20/54 is -13/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 4 × 27 = 108,
1/4 = 1 × 27/4 × 27 = 27/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
20/54 = 20 × 2/54 × 2 = 40/108 - Subtract the two like fractions:
27/108 - 40/108 = 27 - 40/108 = -13/108
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