Subtract 81/4 from 18/3
1st number: 6 0/3, 2nd number: 20 1/4
18/3 - 81/4 is -57/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
18/3 = 18 × 4/3 × 4 = 72/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
81/4 = 81 × 3/4 × 3 = 243/12 - Subtract the two like fractions:
72/12 - 243/12 = 72 - 243/12 = -171/12 - After reducing the fraction, the answer is -57/4
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