Add 20/30 and 6/18
20/30 + 6/18 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
20/30 = 20 × 3/30 × 3 = 60/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
6/18 = 6 × 5/18 × 5 = 30/90 - Add the two like fractions:
60/90 + 30/90 = 60 + 30/90 = 90/90 - 90/90 simplified gives 1/1
- So, 20/30 + 6/18 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30+6/18 20/30+12/18 20/60+6/18 20/30+6/36 60/30+6/18 20/90+6/18 20/30+6/54 20/30+30/18 20/30+6/90 20/30+42/18