Add 10/81 and 12/9
1st number: 10/81, 2nd number: 1 3/9
10/81 + 12/9 is 118/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 9 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
10/81 = 10 × 1/81 × 1 = 10/81 - Likewise, for the 2nd fraction, since 9 × 9 = 81,
12/9 = 12 × 9/9 × 9 = 108/81 - Add the two like fractions:
10/81 + 108/81 = 10 + 108/81 = 118/81 - So, 10/81 + 12/9 = 118/81
In mixed form: 137/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/81+12/9 10/81+24/9 10/81+12/18 30/81+12/9 10/81+36/9 10/81+12/27 50/81+12/9 10/81+60/9 10/81+12/45 70/81+12/9 10/81+84/9 10/81+12/63