Add 12/5 and 3/18
1st number: 2 2/5, 2nd number: 3/18
12/5 + 3/18 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
12/5 = 12 × 18/5 × 18 = 216/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Add the two like fractions:
216/90 + 15/90 = 216 + 15/90 = 231/90 - 231/90 simplified gives 77/30
- So, 12/5 + 3/18 = 77/30
In mixed form: 217/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5+3/18 12/5+6/18 12/10+3/18 12/5+3/36 36/5+3/18 12/5+9/18 12/15+3/18 12/5+3/54 60/5+3/18 12/5+15/18 12/25+3/18 12/5+3/90 84/5+3/18 12/5+21/18 12/35+3/18