Add 15/81 and 6/30
15/81 + 6/30 is 52/135.
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,
15/81 = 15 × 10/81 × 10 = 150/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
6/30 = 6 × 27/30 × 27 = 162/810 - Add the two like fractions:
150/810 + 162/810 = 150 + 162/810 = 312/810 - 312/810 simplified gives 52/135
- So, 15/81 + 6/30 = 52/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/81+6/30 15/81+12/30 15/81+6/60 45/81+6/30 15/81+18/30 15/81+6/90 75/81+6/30 15/81+42/30