Add 15/45 and 28/10
1st number: 15/45, 2nd number: 2 8/10
15/45 + 28/10 is 47/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
15/45 = 15 × 2/45 × 2 = 30/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
28/10 = 28 × 9/10 × 9 = 252/90 - Add the two like fractions:
30/90 + 252/90 = 30 + 252/90 = 282/90 - 282/90 simplified gives 47/15
- So, 15/45 + 28/10 = 47/15
In mixed form: 32/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/45+28/10 15/45+56/10 15/90+28/10 15/45+28/20 15/45+84/10 15/45+28/30 75/45+28/10 15/45+28/50 15/45+28/70