Add 15/2 and 81/9
1st number: 7 1/2, 2nd number: 9 0/9
15/2 + 81/9 is 33/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
15/2 = 15 × 9/2 × 9 = 135/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
81/9 = 81 × 2/9 × 2 = 162/18 - Add the two like fractions:
135/18 + 162/18 = 135 + 162/18 = 297/18 - 297/18 simplified gives 33/2
- So, 15/2 + 81/9 = 33/2
In mixed form: 161/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+81/9 15/4+81/9 15/2+81/18 45/2+81/9 15/6+81/9 15/2+81/27 75/2+81/9 15/10+81/9 15/2+81/45 15/14+81/9 15/2+81/63