Add 84/30 and 9/81
1st number: 2 24/30, 2nd number: 9/81
84/30 + 9/81 is 131/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
84/30 = 84 × 27/30 × 27 = 2268/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
9/81 = 9 × 10/81 × 10 = 90/810 - Add the two like fractions:
2268/810 + 90/810 = 2268 + 90/810 = 2358/810 - 2358/810 simplified gives 131/45
- So, 84/30 + 9/81 = 131/45
In mixed form: 241/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+18/81 84/60+9/81 84/30+27/81 84/90+9/81 84/30+45/81 84/30+63/81