Add 18/14 and 80/12
1st number: 1 4/14, 2nd number: 6 8/12
18/14 + 80/12 is 167/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
18/14 = 18 × 6/14 × 6 = 108/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
80/12 = 80 × 7/12 × 7 = 560/84 - Add the two like fractions:
108/84 + 560/84 = 108 + 560/84 = 668/84 - 668/84 simplified gives 167/21
- So, 18/14 + 80/12 = 167/21
In mixed form: 720/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/14+80/12 18/28+80/12 18/14+80/24 54/14+80/12 18/42+80/12 18/14+80/36 90/14+80/12 18/70+80/12 18/14+80/60 18/98+80/12 18/14+80/84