Add 42/9 and 18/81
1st number: 4 6/9, 2nd number: 18/81
42/9 + 18/81 is 44/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
42/9 = 42 × 9/9 × 9 = 378/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
18/81 = 18 × 1/81 × 1 = 18/81 - Add the two like fractions:
378/81 + 18/81 = 378 + 18/81 = 396/81 - 396/81 simplified gives 44/9
- So, 42/9 + 18/81 = 44/9
In mixed form: 48/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9+18/81 42/9+36/81 42/18+18/81 42/9+54/81 42/27+18/81 42/9+90/81 42/45+18/81 42/63+18/81