Add 28/15 and 75/9
1st number: 1 13/15, 2nd number: 8 3/9
28/15 + 75/9 is 51/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
28/15 = 28 × 3/15 × 3 = 84/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
75/9 = 75 × 5/9 × 5 = 375/45 - Add the two like fractions:
84/45 + 375/45 = 84 + 375/45 = 459/45 - 459/45 simplified gives 51/5
- So, 28/15 + 75/9 = 51/5
In mixed form: 101/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+75/9 28/30+75/9 28/15+75/18 84/15+75/9 28/45+75/9 28/15+75/27 28/75+75/9 28/15+75/45 28/15+75/63