Add 25/15 and 15/8
1st number: 1 10/15, 2nd number: 1 7/8
25/15 + 15/8 is 85/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
25/15 = 25 × 8/15 × 8 = 200/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
15/8 = 15 × 15/8 × 15 = 225/120 - Add the two like fractions:
200/120 + 225/120 = 200 + 225/120 = 425/120 - 425/120 simplified gives 85/24
- So, 25/15 + 15/8 = 85/24
In mixed form: 313/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/15+15/8 25/15+30/8 25/30+15/8 25/15+15/16 75/15+15/8 25/15+45/8 25/45+15/8 25/15+15/24 25/15+75/8 25/75+15/8 25/15+15/40 25/15+15/56