Add 20/3 and 90/8
1st number: 6 2/3, 2nd number: 11 2/8
20/3 + 90/8 is 215/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 3 × 8 = 24,
20/3 = 20 × 8/3 × 8 = 160/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
90/8 = 90 × 3/8 × 3 = 270/24 - Add the two like fractions:
160/24 + 270/24 = 160 + 270/24 = 430/24 - 430/24 simplified gives 215/12
- So, 20/3 + 90/8 = 215/12
In mixed form: 1711/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/3+90/8 20/6+90/8 20/3+90/16 60/3+90/8 20/9+90/8 20/3+90/24 20/15+90/8 20/3+90/40 20/21+90/8 20/3+90/56