Subtract 10/9 from 81/27
1st number: 3 0/27, 2nd number: 1 1/9
81/27 - 10/9 is 17/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 9 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 27 × 1 = 27,
81/27 = 81 × 1/27 × 1 = 81/27 - Likewise, for the 2nd fraction, since 9 × 3 = 27,
10/9 = 10 × 3/9 × 3 = 30/27 - Subtract the two like fractions:
81/27 - 30/27 = 81 - 30/27 = 51/27 - After reducing the fraction, the answer is 17/9
- In mixed form: 18/9
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