Add 18/12 and 9/5
1st number: 1 6/12, 2nd number: 1 4/5
18/12 + 9/5 is 33/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
18/12 = 18 × 5/12 × 5 = 90/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
9/5 = 9 × 12/5 × 12 = 108/60 - Add the two like fractions:
90/60 + 108/60 = 90 + 108/60 = 198/60 - 198/60 simplified gives 33/10
- So, 18/12 + 9/5 = 33/10
In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12+9/5 18/12+18/5 18/24+9/5 18/12+9/10 54/12+9/5 18/12+27/5 18/36+9/5 18/12+9/15 90/12+9/5 18/12+45/5 18/60+9/5 18/12+9/25 18/12+63/5 18/84+9/5 18/12+9/35