Add 40/20 and 8/18
1st number: 2 0/20, 2nd number: 8/18
40/20 + 8/18 is 22/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
40/20 = 40 × 9/20 × 9 = 360/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
8/18 = 8 × 10/18 × 10 = 80/180 - Add the two like fractions:
360/180 + 80/180 = 360 + 80/180 = 440/180 - 440/180 simplified gives 22/9
- So, 40/20 + 8/18 = 22/9
In mixed form: 24/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+8/18 40/20+16/18 40/20+8/36 40/20+24/18 40/60+8/18 40/20+8/54 40/20+40/18 40/20+8/90 40/20+56/18