Add 18/8 and 28/15
1st number: 2 2/8, 2nd number: 1 13/15
18/8 + 28/15 is 247/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
18/8 = 18 × 15/8 × 15 = 270/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
28/15 = 28 × 8/15 × 8 = 224/120 - Add the two like fractions:
270/120 + 224/120 = 270 + 224/120 = 494/120 - 494/120 simplified gives 247/60
- So, 18/8 + 28/15 = 247/60
In mixed form: 47/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8+28/15 18/8+56/15 18/16+28/15 18/8+28/30 54/8+28/15 18/8+84/15 18/24+28/15 18/8+28/45 90/8+28/15 18/40+28/15 18/8+28/75 18/56+28/15