Add 3/2 and 84/81
1st number: 1 1/2, 2nd number: 1 3/81
3/2 + 84/81 is 137/54.
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,
84/81 = 84 × 2/81 × 2 = 168/162 - Add the two like fractions:
243/162 + 168/162 = 243 + 168/162 = 411/162 - 411/162 simplified gives 137/54
- So, 3/2 + 84/81 = 137/54
In mixed form: 229/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/2+84/81 3/4+84/81 9/2+84/81 3/6+84/81 15/2+84/81 3/10+84/81 21/2+84/81 3/14+84/81