Add 10/81 and 18/8
1st number: 10/81, 2nd number: 2 2/8
10/81 + 18/8 is 769/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
10/81 = 10 × 8/81 × 8 = 80/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
18/8 = 18 × 81/8 × 81 = 1458/648 - Add the two like fractions:
80/648 + 1458/648 = 80 + 1458/648 = 1538/648 - 1538/648 simplified gives 769/324
- So, 10/81 + 18/8 = 769/324
In mixed form: 2121/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/81+18/8 10/81+36/8 10/81+18/16 30/81+18/8 10/81+54/8 10/81+18/24 50/81+18/8 10/81+90/8 10/81+18/40 70/81+18/8 10/81+18/56