Add 15/12 and 80/8
1st number: 1 3/12, 2nd number: 10 0/8
15/12 + 80/8 is 45/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
15/12 = 15 × 2/12 × 2 = 30/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
80/8 = 80 × 3/8 × 3 = 240/24 - Add the two like fractions:
30/24 + 240/24 = 30 + 240/24 = 270/24 - 270/24 simplified gives 45/4
- So, 15/12 + 80/8 = 45/4
In mixed form: 111/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+80/8 15/24+80/8 15/12+80/16 45/12+80/8 15/36+80/8 15/12+80/24 75/12+80/8 15/60+80/8 15/12+80/40 15/84+80/8 15/12+80/56