Subtract 12/54 from 21/3
1st number: 7 0/3, 2nd number: 12/54
21/3 - 12/54 is 61/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 3 × 18 = 54,
21/3 = 21 × 18/3 × 18 = 378/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
12/54 = 12 × 1/54 × 1 = 12/54 - Subtract the two like fractions:
378/54 - 12/54 = 378 - 12/54 = 366/54 - After reducing the fraction, the answer is 61/9
- In mixed form: 67/9
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