Add 98/81 and 12/9
1st number: 1 17/81, 2nd number: 1 3/9
98/81 + 12/9 is 206/81.
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,
98/81 = 98 × 1/81 × 1 = 98/81 - Likewise, for the 2nd fraction, since 9 × 9 = 81,
12/9 = 12 × 9/9 × 9 = 108/81 - Add the two like fractions:
98/81 + 108/81 = 98 + 108/81 = 206/81 - So, 98/81 + 12/9 = 206/81
In mixed form: 244/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/81+24/9 98/81+12/18 98/81+36/9 98/81+12/27 98/81+60/9 98/81+12/45 98/81+84/9 98/81+12/63