Add 2/10 and 15/81
2/10 + 15/81 is 52/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
2/10 = 2 × 81/10 × 81 = 162/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
15/81 = 15 × 10/81 × 10 = 150/810 - Add the two like fractions:
162/810 + 150/810 = 162 + 150/810 = 312/810 - 312/810 simplified gives 52/135
- So, 2/10 + 15/81 = 52/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/10+15/81 2/10+30/81 2/20+15/81 6/10+15/81 2/10+45/81 2/30+15/81 2/10+75/81 2/50+15/81 14/10+15/81 2/70+15/81