Add 9/15 and 27/8
1st number: 9/15, 2nd number: 3 3/8
9/15 + 27/8 is 159/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
9/15 = 9 × 8/15 × 8 = 72/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
27/8 = 27 × 15/8 × 15 = 405/120 - Add the two like fractions:
72/120 + 405/120 = 72 + 405/120 = 477/120 - 477/120 simplified gives 159/40
- So, 9/15 + 27/8 = 159/40
In mixed form: 339/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+27/8 9/15+54/8 9/30+27/8 9/15+27/16 27/15+27/8 9/15+81/8 9/45+27/8 9/15+27/24 45/15+27/8 9/75+27/8 9/15+27/40 63/15+27/8 9/15+27/56