Add 9/12 and 80/7
1st number: 9/12, 2nd number: 11 3/7
9/12 + 80/7 is 341/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
9/12 = 9 × 7/12 × 7 = 63/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
80/7 = 80 × 12/7 × 12 = 960/84 - Add the two like fractions:
63/84 + 960/84 = 63 + 960/84 = 1023/84 - 1023/84 simplified gives 341/28
- So, 9/12 + 80/7 = 341/28
In mixed form: 125/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12+80/7 9/24+80/7 9/12+80/14 27/12+80/7 9/36+80/7 9/12+80/21 45/12+80/7 9/60+80/7 9/12+80/35 63/12+80/7 9/84+80/7 9/12+80/49