Subtract 21/5 from 27/54
1st number: 27/54, 2nd number: 4 1/5
27/54 - 21/5 is -37/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 5 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
27/54 = 27 × 5/54 × 5 = 135/270 - Likewise, for the 2nd fraction, since 5 × 54 = 270,
21/5 = 21 × 54/5 × 54 = 1134/270 - Subtract the two like fractions:
135/270 - 1134/270 = 135 - 1134/270 = -999/270 - After reducing the fraction, the answer is -37/10
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