Add 80/20 and 28/30
1st number: 4 0/20, 2nd number: 28/30
80/20 + 28/30 is 74/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
80/20 = 80 × 3/20 × 3 = 240/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
28/30 = 28 × 2/30 × 2 = 56/60 - Add the two like fractions:
240/60 + 56/60 = 240 + 56/60 = 296/60 - 296/60 simplified gives 74/15
- So, 80/20 + 28/30 = 74/15
In mixed form: 414/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+56/30 80/40+28/30 80/20+28/60 80/20+84/30 80/60+28/30 80/20+28/90