Add 2/81 and 40/12
1st number: 2/81, 2nd number: 3 4/12
2/81 + 40/12 is 272/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
2/81 = 2 × 4/81 × 4 = 8/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
40/12 = 40 × 27/12 × 27 = 1080/324 - Add the two like fractions:
8/324 + 1080/324 = 8 + 1080/324 = 1088/324 - 1088/324 simplified gives 272/81
- So, 2/81 + 40/12 = 272/81
In mixed form: 329/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/81+40/12 2/81+80/12 2/81+40/24 6/81+40/12 2/81+40/36 10/81+40/12 2/81+40/60 14/81+40/12 2/81+40/84