Add 20/30 and 63/9
1st number: 20/30, 2nd number: 7 0/9
20/30 + 63/9 is 23/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 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 9 × 10 = 90,
63/9 = 63 × 10/9 × 10 = 630/90 - Add the two like fractions:
60/90 + 630/90 = 60 + 630/90 = 690/90 - 690/90 simplified gives 23/3
- So, 20/30 + 63/9 = 23/3
In mixed form: 72/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30+63/9 20/60+63/9 20/30+63/18 60/30+63/9 20/90+63/9 20/30+63/27 20/30+63/45