Subtract 90/84 from 42/27
1st number: 1 15/27, 2nd number: 1 6/84
42/27 - 90/84 is 61/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
42/27 = 42 × 28/27 × 28 = 1176/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
90/84 = 90 × 9/84 × 9 = 810/756 - Subtract the two like fractions:
1176/756 - 810/756 = 1176 - 810/756 = 366/756 - After reducing the fraction, the answer is 61/126
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