Add 20/81 and 6/30
20/81 + 6/30 is 181/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 30 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
20/81 = 20 × 10/81 × 10 = 200/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
6/30 = 6 × 27/30 × 27 = 162/810 - Add the two like fractions:
200/810 + 162/810 = 200 + 162/810 = 362/810 - 362/810 simplified gives 181/405
- So, 20/81 + 6/30 = 181/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/81+6/30 20/81+12/30 20/81+6/60 60/81+6/30 20/81+18/30 20/81+6/90 20/81+42/30