Subtract 21/54 from 18/9
1st number: 2 0/9, 2nd number: 21/54
18/9 - 21/54 is 29/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 9 × 6 = 54,
18/9 = 18 × 6/9 × 6 = 108/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
21/54 = 21 × 1/54 × 1 = 21/54 - Subtract the two like fractions:
108/54 - 21/54 = 108 - 21/54 = 87/54 - After reducing the fraction, the answer is 29/18
- In mixed form: 111/18
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