Add 40/20 and 35/90
1st number: 2 0/20, 2nd number: 35/90
40/20 + 35/90 is 43/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 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 90 × 2 = 180,
35/90 = 35 × 2/90 × 2 = 70/180 - Add the two like fractions:
360/180 + 70/180 = 360 + 70/180 = 430/180 - 430/180 simplified gives 43/18
- So, 40/20 + 35/90 = 43/18
In mixed form: 27/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+35/90 40/20+70/90 40/60+35/90