Add 12/6 and 18/81
1st number: 2 0/6, 2nd number: 18/81
12/6 + 18/81 is 20/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
12/6 = 12 × 27/6 × 27 = 324/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
18/81 = 18 × 2/81 × 2 = 36/162 - Add the two like fractions:
324/162 + 36/162 = 324 + 36/162 = 360/162 - 360/162 simplified gives 20/9
- So, 12/6 + 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
Related: 24/6+18/81 12/6+36/81 36/6+18/81 12/6+54/81 12/18+18/81 60/6+18/81 12/6+90/81 12/30+18/81 84/6+18/81 12/42+18/81