Add 15/12 and 18/14
1st number: 1 3/12, 2nd number: 1 4/14
15/12 + 18/14 is 71/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
15/12 = 15 × 7/12 × 7 = 105/84 - Likewise, for the 2nd fraction, since 14 × 6 = 84,
18/14 = 18 × 6/14 × 6 = 108/84 - Add the two like fractions:
105/84 + 108/84 = 105 + 108/84 = 213/84 - 213/84 simplified gives 71/28
- So, 15/12 + 18/14 = 71/28
In mixed form: 215/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+18/14 15/12+36/14 15/24+18/14 15/12+18/28 45/12+18/14 15/12+54/14 15/36+18/14 15/12+18/42 75/12+18/14 15/12+90/14 15/60+18/14 15/12+18/70 15/84+18/14 15/12+18/98