Add 3/2 and 18/81
1st number: 1 1/2, 2nd number: 18/81
3/2 + 18/81 is 31/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
3/2 = 3 × 81/2 × 81 = 243/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
18/81 = 18 × 2/81 × 2 = 36/162 - Add the two like fractions:
243/162 + 36/162 = 243 + 36/162 = 279/162 - 279/162 simplified gives 31/18
- So, 3/2 + 18/81 = 31/18
In mixed form: 113/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/2+18/81 3/2+36/81 3/4+18/81 9/2+18/81 3/2+54/81 3/6+18/81 15/2+18/81 3/2+90/81 3/10+18/81 21/2+18/81 3/14+18/81