Add 9/18 and 20/5
1st number: 9/18, 2nd number: 4 0/5
9/18 + 20/5 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
9/18 = 9 × 5/18 × 5 = 45/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
20/5 = 20 × 18/5 × 18 = 360/90 - Add the two like fractions:
45/90 + 360/90 = 45 + 360/90 = 405/90 - 405/90 simplified gives 9/2
- So, 9/18 + 20/5 = 9/2
In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18+40/5 9/36+20/5 9/18+20/10 27/18+20/5 9/18+60/5 9/54+20/5 9/18+20/15 45/18+20/5 9/90+20/5 9/18+20/25 63/18+20/5 9/18+20/35