Add 28/81 and 5/10
28/81 + 5/10 is 137/162.
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,
28/81 = 28 × 10/81 × 10 = 280/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
5/10 = 5 × 81/10 × 81 = 405/810 - Add the two like fractions:
280/810 + 405/810 = 280 + 405/810 = 685/810 - 685/810 simplified gives 137/162
- So, 28/81 + 5/10 = 137/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/81+5/10 28/81+5/20 84/81+5/10 28/81+15/10 28/81+5/30 28/81+25/10 28/81+5/50 28/81+35/10 28/81+5/70