Subtract 35/81 from 84/21
1st number: 4 0/21, 2nd number: 35/81
84/21 - 35/81 is 289/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 21 × 27 = 567,
84/21 = 84 × 27/21 × 27 = 2268/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
35/81 = 35 × 7/81 × 7 = 245/567 - Subtract the two like fractions:
2268/567 - 245/567 = 2268 - 245/567 = 2023/567 - After reducing the fraction, the answer is 289/81
- In mixed form: 346/81
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