Add 9/10 and 20/30
9/10 + 20/30 is 47/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
9/10 = 9 × 3/10 × 3 = 27/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
20/30 = 20 × 1/30 × 1 = 20/30 - Add the two like fractions:
27/30 + 20/30 = 27 + 20/30 = 47/30 - So, 9/10 + 20/30 = 47/30
In mixed form: 117/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10+20/30 9/10+40/30 9/20+20/30 9/10+20/60 27/10+20/30 9/10+60/30 9/30+20/30 9/10+20/90 45/10+20/30 9/50+20/30 63/10+20/30 9/70+20/30