Add 8/18 and 28/15
1st number: 8/18, 2nd number: 1 13/15
8/18 + 28/15 is 104/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
8/18 = 8 × 5/18 × 5 = 40/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
28/15 = 28 × 6/15 × 6 = 168/90 - Add the two like fractions:
40/90 + 168/90 = 40 + 168/90 = 208/90 - 208/90 simplified gives 104/45
- So, 8/18 + 28/15 = 104/45
In mixed form: 214/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18+28/15 8/18+56/15 8/36+28/15 8/18+28/30 24/18+28/15 8/18+84/15 8/54+28/15 8/18+28/45 40/18+28/15 8/90+28/15 8/18+28/75 56/18+28/15