Add 75/9 and 40/20
1st number: 8 3/9, 2nd number: 2 0/20
75/9 + 40/20 is 31/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
75/9 = 75 × 20/9 × 20 = 1500/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
40/20 = 40 × 9/20 × 9 = 360/180 - Add the two like fractions:
1500/180 + 360/180 = 1500 + 360/180 = 1860/180 - 1860/180 simplified gives 31/3
- So, 75/9 + 40/20 = 31/3
In mixed form: 101/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/9+80/20 75/18+40/20 75/27+40/20 75/9+40/60 75/45+40/20 75/63+40/20