Add 24/81 and 45/90
24/81 + 45/90 is 43/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 90 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
24/81 = 24 × 10/81 × 10 = 240/810 - Likewise, for the 2nd fraction, since 90 × 9 = 810,
45/90 = 45 × 9/90 × 9 = 405/810 - Add the two like fractions:
240/810 + 405/810 = 240 + 405/810 = 645/810 - 645/810 simplified gives 43/54
- So, 24/81 + 45/90 = 43/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/81+45/90 72/81+45/90