Add 6/3 and 18/81, Solve 2 0/3 + 18/81 as a fraction

Add 6/3 and 18/81

1^st number: 2 0/3, 2^nd number: 18/81

6/3 + 18/81 is 20/9.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81

Next, find the equivalent fraction of both fractional numbers with denominator 81
For the 1st fraction, since 3 × 27 = 81,
6/3 = 6 × 27/3 × 27 = 162/81
Likewise, for the 2nd fraction, since 81 × 1 = 81,
18/81 = 18 × 1/81 × 1 = 18/81
Add the two like fractions:
162/81 + 18/81 = 162 + 18/81 = 180/81
180/81 simplified gives 20/9
So, 6/3 + 18/81 = 20/9
In mixed form: 22/9

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad