Subtract 20/4 from 81/6
1st number: 13 3/6, 2nd number: 5 0/4
81/6 - 20/4 is 17/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 4 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 4 × 3 = 12,
20/4 = 20 × 3/4 × 3 = 60/12 - Subtract the two like fractions:
162/12 - 60/12 = 162 - 60/12 = 102/12 - After reducing the fraction, the answer is 17/2
- In mixed form: 81/2
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