Add 81/3 and 20/9
1st number: 27 0/3, 2nd number: 2 2/9
81/3 + 20/9 is 263/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 9 is 9
Next, find the equivalent fraction of both fractional numbers with denominator 9 - For the 1st fraction, since 3 × 3 = 9,
81/3 = 81 × 3/3 × 3 = 243/9 - Likewise, for the 2nd fraction, since 9 × 1 = 9,
20/9 = 20 × 1/9 × 1 = 20/9 - Add the two like fractions:
243/9 + 20/9 = 243 + 20/9 = 263/9 - So, 81/3 + 20/9 = 263/9
In mixed form: 292/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/3+40/9 81/6+20/9 81/3+20/18 81/3+60/9 81/9+20/9 81/3+20/27 81/15+20/9 81/3+20/45 81/21+20/9 81/3+20/63