Add 15/24 and 28/42
15/24 + 28/42 is 31/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
15/24 = 15 × 7/24 × 7 = 105/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
28/42 = 28 × 4/42 × 4 = 112/168 - Add the two like fractions:
105/168 + 112/168 = 105 + 112/168 = 217/168 - 217/168 simplified gives 31/24
- So, 15/24 + 28/42 = 31/24
In mixed form: 17/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/24+28/42 15/24+56/42 15/48+28/42 15/24+28/84 45/24+28/42 15/24+84/42 15/72+28/42 75/24+28/42