Add 30/9 and 40/81
1st number: 3 3/9, 2nd number: 40/81
30/9 + 40/81 is 310/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
30/9 = 30 × 9/9 × 9 = 270/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
40/81 = 40 × 1/81 × 1 = 40/81 - Add the two like fractions:
270/81 + 40/81 = 270 + 40/81 = 310/81 - So, 30/9 + 40/81 = 310/81
In mixed form: 367/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+40/81 30/9+80/81 30/18+40/81 90/9+40/81 30/27+40/81 30/45+40/81 30/63+40/81