Subtract 42/4 from 81/3
1st number: 27 0/3, 2nd number: 10 2/4
81/3 - 42/4 is 33/2.
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,
81/3 = 81 × 4/3 × 4 = 324/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
42/4 = 42 × 3/4 × 3 = 126/12 - Subtract the two like fractions:
324/12 - 126/12 = 324 - 126/12 = 198/12 - After reducing the fraction, the answer is 33/2
- In mixed form: 161/2
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