Subtract 7/81 from 84/12
1st number: 7 0/12, 2nd number: 7/81
84/12 - 7/81 is 560/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
84/12 = 84 × 27/12 × 27 = 2268/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
7/81 = 7 × 4/81 × 4 = 28/324 - Subtract the two like fractions:
2268/324 - 28/324 = 2268 - 28/324 = 2240/324 - After reducing the fraction, the answer is 560/81
- In mixed form: 674/81
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