Subtract 45/12 from 81/6
1st number: 13 3/6, 2nd number: 3 9/12
81/6 - 45/12 is 39/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 6 × 2 = 12,
81/6 = 81 × 2/6 × 2 = 162/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
45/12 = 45 × 1/12 × 1 = 45/12 - Subtract the two like fractions:
162/12 - 45/12 = 162 - 45/12 = 117/12 - After reducing the fraction, the answer is 39/4
- In mixed form: 93/4
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