Add 18/5 and 7/90
1st number: 3 3/5, 2nd number: 7/90
18/5 + 7/90 is 331/90.
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,
7/90 = 7 × 1/90 × 1 = 7/90 - Add the two like fractions:
324/90 + 7/90 = 324 + 7/90 = 331/90 - So, 18/5 + 7/90 = 331/90
In mixed form: 361/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5+7/90 18/5+14/90 18/10+7/90 54/5+7/90 18/5+21/90 18/15+7/90 90/5+7/90 18/5+35/90 18/25+7/90 18/5+49/90 18/35+7/90