Subtract 1/12 from 81/28
1st number: 2 25/28, 2nd number: 1/12
81/28 - 1/12 is 59/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
81/28 = 81 × 3/28 × 3 = 243/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
1/12 = 1 × 7/12 × 7 = 7/84 - Subtract the two like fractions:
243/84 - 7/84 = 243 - 7/84 = 236/84 - After reducing the fraction, the answer is 59/21
- In mixed form: 217/21
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