Add 40/12 and 1/81
1st number: 3 4/12, 2nd number: 1/81
40/12 + 1/81 is 271/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
40/12 = 40 × 27/12 × 27 = 1080/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
1/81 = 1 × 4/81 × 4 = 4/324 - Add the two like fractions:
1080/324 + 4/324 = 1080 + 4/324 = 1084/324 - 1084/324 simplified gives 271/81
- So, 40/12 + 1/81 = 271/81
In mixed form: 328/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+1/81 40/12+2/81 40/24+1/81 40/12+3/81 40/36+1/81 40/12+5/81 40/60+1/81 40/12+7/81 40/84+1/81