Add 15/84 and 15/9
1st number: 15/84, 2nd number: 1 6/9
15/84 + 15/9 is 155/84.
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,
15/9 = 15 × 28/9 × 28 = 420/252 - Add the two like fractions:
45/252 + 420/252 = 45 + 420/252 = 465/252 - 465/252 simplified gives 155/84
- So, 15/84 + 15/9 = 155/84
In mixed form: 171/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84+15/9 15/84+30/9 15/84+15/18 45/84+15/9 15/84+45/9 15/84+15/27 75/84+15/9 15/84+75/9 15/84+15/45 15/84+15/63