Subtract 7/84 from 90/54
1st number: 1 36/54, 2nd number: 7/84
90/54 - 7/84 is 19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 54 × 14 = 756,
90/54 = 90 × 14/54 × 14 = 1260/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
7/84 = 7 × 9/84 × 9 = 63/756 - Subtract the two like fractions:
1260/756 - 63/756 = 1260 - 63/756 = 1197/756 - After reducing the fraction, the answer is 19/12
- In mixed form: 17/12
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