Subtract 90/28 from 5/27
1st number: 5/27, 2nd number: 3 6/28
5/27 - 90/28 is -1145/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
5/27 = 5 × 28/27 × 28 = 140/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
90/28 = 90 × 27/28 × 27 = 2430/756 - Subtract the two like fractions:
140/756 - 2430/756 = 140 - 2430/756 = -2290/756 - After reducing the fraction, the answer is -1145/378
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