Add 54/9 and 28/80
1st number: 6 0/9, 2nd number: 28/80
54/9 + 28/80 is 127/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 9 × 80 = 720,
54/9 = 54 × 80/9 × 80 = 4320/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
28/80 = 28 × 9/80 × 9 = 252/720 - Add the two like fractions:
4320/720 + 252/720 = 4320 + 252/720 = 4572/720 - 4572/720 simplified gives 127/20
- So, 54/9 + 28/80 = 127/20
In mixed form: 67/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9+56/80 54/18+28/80 54/9+84/80 54/27+28/80 54/45+28/80 54/63+28/80