Add 30/2 and 28/81
1st number: 15 0/2, 2nd number: 28/81
30/2 + 28/81 is 1243/81.
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,
30/2 = 30 × 81/2 × 81 = 2430/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
28/81 = 28 × 2/81 × 2 = 56/162 - Add the two like fractions:
2430/162 + 56/162 = 2430 + 56/162 = 2486/162 - 2486/162 simplified gives 1243/81
- So, 30/2 + 28/81 = 1243/81
In mixed form: 1528/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/2+28/81 30/2+56/81 30/4+28/81 90/2+28/81 30/2+84/81 30/6+28/81 30/10+28/81 30/14+28/81