Add 15/84 and 20/9
1st number: 15/84, 2nd number: 2 2/9
15/84 + 20/9 is 605/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
15/84 = 15 × 3/84 × 3 = 45/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
20/9 = 20 × 28/9 × 28 = 560/252 - Add the two like fractions:
45/252 + 560/252 = 45 + 560/252 = 605/252 - So, 15/84 + 20/9 = 605/252
In mixed form: 2101/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84+20/9 15/84+40/9 15/84+20/18 45/84+20/9 15/84+60/9 15/84+20/27 75/84+20/9 15/84+20/45 15/84+20/63