Add 5/81 and 18/16
1st number: 5/81, 2nd number: 1 2/16
5/81 + 18/16 is 769/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 16 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 81 × 16 = 1296,
5/81 = 5 × 16/81 × 16 = 80/1296 - Likewise, for the 2nd fraction, since 16 × 81 = 1296,
18/16 = 18 × 81/16 × 81 = 1458/1296 - Add the two like fractions:
80/1296 + 1458/1296 = 80 + 1458/1296 = 1538/1296 - 1538/1296 simplified gives 769/648
- So, 5/81 + 18/16 = 769/648
In mixed form: 1121/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/81+18/16 5/81+36/16 5/81+18/32 15/81+18/16 5/81+54/16 5/81+18/48 25/81+18/16 5/81+90/16 5/81+18/80 35/81+18/16