Add 81/6 and 21/9
1st number: 13 3/6, 2nd number: 2 3/9
81/6 + 21/9 is 95/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
81/6 = 81 × 3/6 × 3 = 243/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
21/9 = 21 × 2/9 × 2 = 42/18 - Add the two like fractions:
243/18 + 42/18 = 243 + 42/18 = 285/18 - 285/18 simplified gives 95/6
- So, 81/6 + 21/9 = 95/6
In mixed form: 155/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6+42/9 81/12+21/9 81/6+21/18 81/6+63/9 81/18+21/9 81/6+21/27 81/30+21/9 81/6+21/45 81/42+21/9 81/6+21/63