Add 15/35 and 42/7
1st number: 15/35, 2nd number: 6 0/7
15/35 + 42/7 is 45/7.
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,
42/7 = 42 × 5/7 × 5 = 210/35 - Add the two like fractions:
15/35 + 210/35 = 15 + 210/35 = 225/35 - 225/35 simplified gives 45/7
- So, 15/35 + 42/7 = 45/7
In mixed form: 63/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35+42/7 15/35+84/7 15/70+42/7 15/35+42/14 45/35+42/7 15/35+42/21 75/35+42/7 15/35+42/35 15/35+42/49