Add 28/45 and 80/30
1st number: 28/45, 2nd number: 2 20/30
28/45 + 80/30 is 148/45.
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,
80/30 = 80 × 3/30 × 3 = 240/90 - Add the two like fractions:
56/90 + 240/90 = 56 + 240/90 = 296/90 - 296/90 simplified gives 148/45
- So, 28/45 + 80/30 = 148/45
In mixed form: 313/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+80/30 28/90+80/30 28/45+80/60 84/45+80/30 28/45+80/90