Add 28/5 and 12/80
1st number: 5 3/5, 2nd number: 12/80
28/5 + 12/80 is 23/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
28/5 = 28 × 16/5 × 16 = 448/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Add the two like fractions:
448/80 + 12/80 = 448 + 12/80 = 460/80 - 460/80 simplified gives 23/4
- So, 28/5 + 12/80 = 23/4
In mixed form: 53/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/5+12/80 28/5+24/80 28/10+12/80 84/5+12/80 28/5+36/80 28/15+12/80 28/5+60/80 28/25+12/80 28/5+84/80 28/35+12/80