Add 15/7 and 42/24
1st number: 2 1/7, 2nd number: 1 18/24
15/7 + 42/24 is 109/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 7 × 24 = 168,
15/7 = 15 × 24/7 × 24 = 360/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168 - Add the two like fractions:
360/168 + 294/168 = 360 + 294/168 = 654/168 - 654/168 simplified gives 109/28
- So, 15/7 + 42/24 = 109/28
In mixed form: 325/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7+42/24 15/7+84/24 15/14+42/24 15/7+42/48 45/7+42/24 15/21+42/24 15/7+42/72 75/7+42/24 15/35+42/24 15/49+42/24