Subtract 90/28 from 56/15
1st number: 3 11/15, 2nd number: 3 6/28
56/15 - 90/28 is 109/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
56/15 = 56 × 28/15 × 28 = 1568/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
90/28 = 90 × 15/28 × 15 = 1350/420 - Subtract the two like fractions:
1568/420 - 1350/420 = 1568 - 1350/420 = 218/420 - After reducing the fraction, the answer is 109/210
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