Add 30/81 and 18/10
1st number: 30/81, 2nd number: 1 8/10
30/81 + 18/10 is 293/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 10 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
30/81 = 30 × 10/81 × 10 = 300/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
18/10 = 18 × 81/10 × 81 = 1458/810 - Add the two like fractions:
300/810 + 1458/810 = 300 + 1458/810 = 1758/810 - 1758/810 simplified gives 293/135
- So, 30/81 + 18/10 = 293/135
In mixed form: 223/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/81+18/10 30/81+36/10 30/81+18/20 90/81+18/10 30/81+54/10 30/81+18/30 30/81+90/10 30/81+18/50 30/81+18/70