Add 40/81 and 2/10
40/81 + 2/10 is 281/405.
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,
40/81 = 40 × 10/81 × 10 = 400/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
2/10 = 2 × 81/10 × 81 = 162/810 - Add the two like fractions:
400/810 + 162/810 = 400 + 162/810 = 562/810 - 562/810 simplified gives 281/405
- So, 40/81 + 2/10 = 281/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/81+2/10 40/81+4/10 40/81+2/20 40/81+6/10 40/81+2/30 40/81+2/50 40/81+14/10 40/81+2/70