Add 18/14 and 84/12
1st number: 1 4/14, 2nd number: 7 0/12
18/14 + 84/12 is 58/7.
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,
84/12 = 84 × 7/12 × 7 = 588/84 - Add the two like fractions:
108/84 + 588/84 = 108 + 588/84 = 696/84 - 696/84 simplified gives 58/7
- So, 18/14 + 84/12 = 58/7
In mixed form: 82/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/14+84/12 18/28+84/12 18/14+84/24 54/14+84/12 18/42+84/12 18/14+84/36 90/14+84/12 18/70+84/12 18/14+84/60 18/98+84/12