Subtract 40/27 from 81/28
1st number: 2 25/28, 2nd number: 1 13/27
81/28 - 40/27 is 1067/756.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
81/28 = 81 × 27/28 × 27 = 2187/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
40/27 = 40 × 28/27 × 28 = 1120/756 - Subtract the two like fractions:
2187/756 - 1120/756 = 2187 - 1120/756 = 1067/756 - In mixed form: 1311/756
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