Add 1/3 and 20/90
1/3 + 20/90 is 5/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
1/3 = 1 × 30/3 × 30 = 30/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Add the two like fractions:
30/90 + 20/90 = 30 + 20/90 = 50/90 - 50/90 simplified gives 5/9
- So, 1/3 + 20/90 = 5/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3+20/90 1/3+40/90 1/6+20/90 1/3+60/90 1/9+20/90 5/3+20/90 1/15+20/90 7/3+20/90 1/21+20/90