Subtract 1/27 from 90/84
1st number: 1 6/84, 2nd number: 1/27
90/84 - 1/27 is 391/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
90/84 = 90 × 9/84 × 9 = 810/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
1/27 = 1 × 28/27 × 28 = 28/756 - Subtract the two like fractions:
810/756 - 28/756 = 810 - 28/756 = 782/756 - After reducing the fraction, the answer is 391/378
- In mixed form: 113/378
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