Subtract 21/54 from 21/2
1st number: 10 1/2, 2nd number: 21/54
21/2 - 21/54 is 91/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 2 × 27 = 54,
21/2 = 21 × 27/2 × 27 = 567/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
21/54 = 21 × 1/54 × 1 = 21/54 - Subtract the two like fractions:
567/54 - 21/54 = 567 - 21/54 = 546/54 - After reducing the fraction, the answer is 91/9
- In mixed form: 101/9
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