Add 98/9 and 81/4
1st number: 10 8/9, 2nd number: 20 1/4
98/9 + 81/4 is 1121/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
98/9 = 98 × 4/9 × 4 = 392/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
81/4 = 81 × 9/4 × 9 = 729/36 - Add the two like fractions:
392/36 + 729/36 = 392 + 729/36 = 1121/36 - So, 98/9 + 81/4 = 1121/36
In mixed form: 315/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18+81/4 98/9+81/8 98/27+81/4 98/9+81/12 98/45+81/4 98/9+81/20 98/63+81/4 98/9+81/28