Subtract 3/4 from 81/28
1st number: 2 25/28, 2nd number: 3/4
81/28 - 3/4 is 15/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
81/28 = 81 × 1/28 × 1 = 81/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
3/4 = 3 × 7/4 × 7 = 21/28 - Subtract the two like fractions:
81/28 - 21/28 = 81 - 21/28 = 60/28 - After reducing the fraction, the answer is 15/7
- In mixed form: 21/7
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