Subtract 90/81 from 9/2
1st number: 4 1/2, 2nd number: 1 9/81
9/2 - 90/81 is 61/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
9/2 = 9 × 81/2 × 81 = 729/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
90/81 = 90 × 2/81 × 2 = 180/162 - Subtract the two like fractions:
729/162 - 180/162 = 729 - 180/162 = 549/162 - After reducing the fraction, the answer is 61/18
- In mixed form: 37/18
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