Subtract 6/4 from 81/12
1st number: 6 9/12, 2nd number: 1 2/4
81/12 - 6/4 is 21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
81/12 = 81 × 1/12 × 1 = 81/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
6/4 = 6 × 3/4 × 3 = 18/12 - Subtract the two like fractions:
81/12 - 18/12 = 81 - 18/12 = 63/12 - After reducing the fraction, the answer is 21/4
- In mixed form: 51/4
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