Add 28/15 and 20/24
1st number: 1 13/15, 2nd number: 20/24
28/15 + 20/24 is 27/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
28/15 = 28 × 8/15 × 8 = 224/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
20/24 = 20 × 5/24 × 5 = 100/120 - Add the two like fractions:
224/120 + 100/120 = 224 + 100/120 = 324/120 - 324/120 simplified gives 27/10
- So, 28/15 + 20/24 = 27/10
In mixed form: 27/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+20/24 28/15+40/24 28/30+20/24 28/15+20/48 84/15+20/24 28/15+60/24 28/45+20/24 28/15+20/72 28/75+20/24