Add 20/9 and 15/42
1st number: 2 2/9, 2nd number: 15/42
20/9 + 15/42 is 325/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
20/9 = 20 × 14/9 × 14 = 280/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
15/42 = 15 × 3/42 × 3 = 45/126 - Add the two like fractions:
280/126 + 45/126 = 280 + 45/126 = 325/126 - So, 20/9 + 15/42 = 325/126
In mixed form: 273/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+15/42 20/9+30/42 20/18+15/42 20/9+15/84 60/9+15/42 20/9+45/42 20/27+15/42 20/9+75/42 20/45+15/42 20/63+15/42