Subtract 90/84 from 81/8
1st number: 10 1/8, 2nd number: 1 6/84
81/8 - 90/84 is 507/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
81/8 = 81 × 21/8 × 21 = 1701/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
90/84 = 90 × 2/84 × 2 = 180/168 - Subtract the two like fractions:
1701/168 - 180/168 = 1701 - 180/168 = 1521/168 - After reducing the fraction, the answer is 507/56
- In mixed form: 93/56
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