Add 80/9 and 81/28
1st number: 8 8/9, 2nd number: 2 25/28
80/9 + 81/28 is 2969/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
80/9 = 80 × 28/9 × 28 = 2240/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
81/28 = 81 × 9/28 × 9 = 729/252 - Add the two like fractions:
2240/252 + 729/252 = 2240 + 729/252 = 2969/252 - So, 80/9 + 81/28 = 2969/252
In mixed form: 11197/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+81/28 80/9+81/56 80/27+81/28 80/9+81/84 80/45+81/28 80/63+81/28