Add 18/5 and 3/90
1st number: 3 3/5, 2nd number: 3/90
18/5 + 3/90 is 109/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 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 90 × 1 = 90,
3/90 = 3 × 1/90 × 1 = 3/90 - Add the two like fractions:
324/90 + 3/90 = 324 + 3/90 = 327/90 - 327/90 simplified gives 109/30
- So, 18/5 + 3/90 = 109/30
In mixed form: 319/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5+3/90 18/5+6/90 18/10+3/90 54/5+3/90 18/5+9/90 18/15+3/90 90/5+3/90 18/5+15/90 18/25+3/90 18/5+21/90 18/35+3/90