Subtract 21/5 from 10/54
1st number: 10/54, 2nd number: 4 1/5
10/54 - 21/5 is -542/135.
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,
10/54 = 10 × 5/54 × 5 = 50/270 - Likewise, for the 2nd fraction, since 5 × 54 = 270,
21/5 = 21 × 54/5 × 54 = 1134/270 - Subtract the two like fractions:
50/270 - 1134/270 = 50 - 1134/270 = -1084/270 - After reducing the fraction, the answer is -542/135
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