Add 21/30 and 63/3
1st number: 21/30, 2nd number: 21 0/3
21/30 + 63/3 is 217/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
63/3 = 63 × 10/3 × 10 = 630/30 - Add the two like fractions:
21/30 + 630/30 = 21 + 630/30 = 651/30 - 651/30 simplified gives 217/10
- So, 21/30 + 63/3 = 217/10
In mixed form: 217/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30+63/3 21/60+63/3 21/30+63/6 63/30+63/3 21/90+63/3 21/30+63/9 21/30+63/15 21/30+63/21