Add 28/45 and 35/30
1st number: 28/45, 2nd number: 1 5/30
28/45 + 35/30 is 161/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
28/45 = 28 × 2/45 × 2 = 56/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
35/30 = 35 × 3/30 × 3 = 105/90 - Add the two like fractions:
56/90 + 105/90 = 56 + 105/90 = 161/90 - So, 28/45 + 35/30 = 161/90
In mixed form: 171/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+35/30 28/45+70/30 28/90+35/30 28/45+35/60 84/45+35/30 28/45+35/90