Add 15/35 and 9/7
1st number: 15/35, 2nd number: 1 2/7
15/35 + 9/7 is 12/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 35 × 1 = 35,
15/35 = 15 × 1/35 × 1 = 15/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
9/7 = 9 × 5/7 × 5 = 45/35 - Add the two like fractions:
15/35 + 45/35 = 15 + 45/35 = 60/35 - 60/35 simplified gives 12/7
- So, 15/35 + 9/7 = 12/7
In mixed form: 15/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35+9/7 15/35+18/7 15/70+9/7 15/35+9/14 45/35+9/7 15/35+27/7 15/35+9/21 75/35+9/7 15/35+45/7 15/35+9/35 15/35+63/7 15/35+9/49