Subtract 4/81 from 90/6
1st number: 15 0/6, 2nd number: 4/81
90/6 - 4/81 is 1211/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
90/6 = 90 × 27/6 × 27 = 2430/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
4/81 = 4 × 2/81 × 2 = 8/162 - Subtract the two like fractions:
2430/162 - 8/162 = 2430 - 8/162 = 2422/162 - After reducing the fraction, the answer is 1211/81
- In mixed form: 1477/81
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