Subtract 42/81 from 40/3
1st number: 13 1/3, 2nd number: 42/81
40/3 - 42/81 is 346/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 3 × 27 = 81,
40/3 = 40 × 27/3 × 27 = 1080/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
42/81 = 42 × 1/81 × 1 = 42/81 - Subtract the two like fractions:
1080/81 - 42/81 = 1080 - 42/81 = 1038/81 - After reducing the fraction, the answer is 346/27
- In mixed form: 1222/27
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