Add 12/5 and 80/60
1st number: 2 2/5, 2nd number: 1 20/60
12/5 + 80/60 is 56/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
12/5 = 12 × 12/5 × 12 = 144/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
80/60 = 80 × 1/60 × 1 = 80/60 - Add the two like fractions:
144/60 + 80/60 = 144 + 80/60 = 224/60 - 224/60 simplified gives 56/15
- So, 12/5 + 80/60 = 56/15
In mixed form: 311/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5+80/60 12/10+80/60 36/5+80/60 12/15+80/60 60/5+80/60 12/25+80/60 84/5+80/60 12/35+80/60