Add 12/8 and 80/5
1st number: 1 4/8, 2nd number: 16 0/5
12/8 + 80/5 is 35/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
12/8 = 12 × 5/8 × 5 = 60/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
80/5 = 80 × 8/5 × 8 = 640/40 - Add the two like fractions:
60/40 + 640/40 = 60 + 640/40 = 700/40 - 700/40 simplified gives 35/2
- So, 12/8 + 80/5 = 35/2
In mixed form: 171/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8+80/5 12/16+80/5 12/8+80/10 36/8+80/5 12/24+80/5 12/8+80/15 60/8+80/5 12/40+80/5 12/8+80/25 84/8+80/5 12/56+80/5 12/8+80/35