Add 40/18 and 20/5
1st number: 2 4/18, 2nd number: 4 0/5
40/18 + 20/5 is 56/9.
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,
40/18 = 40 × 5/18 × 5 = 200/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
20/5 = 20 × 18/5 × 18 = 360/90 - Add the two like fractions:
200/90 + 360/90 = 200 + 360/90 = 560/90 - 560/90 simplified gives 56/9
- So, 40/18 + 20/5 = 56/9
In mixed form: 62/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+20/5 40/18+40/5 40/36+20/5 40/18+20/10 40/18+60/5 40/54+20/5 40/18+20/15 40/90+20/5 40/18+20/25 40/18+20/35