Subtract 40/12 from 81/3
1st number: 27 0/3, 2nd number: 3 4/12
81/3 - 40/12 is 71/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 12 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 12 × 1 = 12,
40/12 = 40 × 1/12 × 1 = 40/12 - Subtract the two like fractions:
324/12 - 40/12 = 324 - 40/12 = 284/12 - After reducing the fraction, the answer is 71/3
- In mixed form: 232/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/3-80/12 81/6-40/12 81/3-40/24 81/9-40/12 81/3-40/36 81/15-40/12 81/3-40/60 81/21-40/12 81/3-40/84