Add 42/18 and 24/81
1st number: 2 6/18, 2nd number: 24/81
42/18 + 24/81 is 71/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
42/18 = 42 × 9/18 × 9 = 378/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
24/81 = 24 × 2/81 × 2 = 48/162 - Add the two like fractions:
378/162 + 48/162 = 378 + 48/162 = 426/162 - 426/162 simplified gives 71/27
- So, 42/18 + 24/81 = 71/27
In mixed form: 217/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+24/81 42/18+48/81 42/36+24/81 42/18+72/81 42/54+24/81 42/90+24/81