Subtract 28/81 from 90/56
1st number: 1 34/56, 2nd number: 28/81
90/56 - 28/81 is 2861/2268.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 81 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 56 × 81 = 4536,
90/56 = 90 × 81/56 × 81 = 7290/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
28/81 = 28 × 56/81 × 56 = 1568/4536 - Subtract the two like fractions:
7290/4536 - 1568/4536 = 7290 - 1568/4536 = 5722/4536 - After reducing the fraction, the answer is 2861/2268
- In mixed form: 1593/2268
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