Add 20/81 and 35/24
1st number: 20/81, 2nd number: 1 11/24
20/81 + 35/24 is 1105/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 24 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
20/81 = 20 × 8/81 × 8 = 160/648 - Likewise, for the 2nd fraction, since 24 × 27 = 648,
35/24 = 35 × 27/24 × 27 = 945/648 - Add the two like fractions:
160/648 + 945/648 = 160 + 945/648 = 1105/648 - So, 20/81 + 35/24 = 1105/648
In mixed form: 1457/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/81+35/24 20/81+70/24 20/81+35/48 60/81+35/24 20/81+35/72