Subtract 20/54 from 90/28
1st number: 3 6/28, 2nd number: 20/54
90/28 - 20/54 is 1075/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
90/28 = 90 × 27/28 × 27 = 2430/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
20/54 = 20 × 14/54 × 14 = 280/756 - Subtract the two like fractions:
2430/756 - 280/756 = 2430 - 280/756 = 2150/756 - After reducing the fraction, the answer is 1075/378
- In mixed form: 2319/378
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