Add 5/80 and 28/9
1st number: 5/80, 2nd number: 3 1/9
5/80 + 28/9 is 457/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
5/80 = 5 × 9/80 × 9 = 45/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
28/9 = 28 × 80/9 × 80 = 2240/720 - Add the two like fractions:
45/720 + 2240/720 = 45 + 2240/720 = 2285/720 - 2285/720 simplified gives 457/144
- So, 5/80 + 28/9 = 457/144
In mixed form: 325/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/80+28/9 5/80+56/9 5/80+28/18 15/80+28/9 5/80+84/9 5/80+28/27 25/80+28/9 5/80+28/45 35/80+28/9 5/80+28/63