Add 30/81 and 3/10
30/81 + 3/10 is 181/270.
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,
3/10 = 3 × 81/10 × 81 = 243/810 - Add the two like fractions:
300/810 + 243/810 = 300 + 243/810 = 543/810 - 543/810 simplified gives 181/270
- So, 30/81 + 3/10 = 181/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/81+3/10 30/81+6/10 30/81+3/20 90/81+3/10 30/81+9/10 30/81+3/30 30/81+15/10 30/81+3/50 30/81+21/10 30/81+3/70