Add 18/5 and 35/18
1st number: 3 3/5, 2nd number: 1 17/18
18/5 + 35/18 is 499/90.
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,
18/5 = 18 × 18/5 × 18 = 324/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
35/18 = 35 × 5/18 × 5 = 175/90 - Add the two like fractions:
324/90 + 175/90 = 324 + 175/90 = 499/90 - So, 18/5 + 35/18 = 499/90
In mixed form: 549/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5+35/18 18/5+70/18 18/10+35/18 18/5+35/36 54/5+35/18 18/15+35/18 18/5+35/54 90/5+35/18 18/25+35/18 18/5+35/90 18/35+35/18