Add 45/18 and 6/90
1st number: 2 9/18, 2nd number: 6/90
45/18 + 6/90 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
45/18 = 45 × 5/18 × 5 = 225/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
6/90 = 6 × 1/90 × 1 = 6/90 - Add the two like fractions:
225/90 + 6/90 = 225 + 6/90 = 231/90 - 231/90 simplified gives 77/30
- So, 45/18 + 6/90 = 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: 90/18+6/90 45/18+12/90 45/36+6/90 45/18+18/90 45/54+6/90 45/18+30/90 45/90+6/90 45/18+42/90