Add 3/30 and 21/3
1st number: 3/30, 2nd number: 7 0/3
3/30 + 21/3 is 71/10.
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,
3/30 = 3 × 1/30 × 1 = 3/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
21/3 = 21 × 10/3 × 10 = 210/30 - Add the two like fractions:
3/30 + 210/30 = 3 + 210/30 = 213/30 - 213/30 simplified gives 71/10
- So, 3/30 + 21/3 = 71/10
In mixed form: 71/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30+21/3 3/30+42/3 3/60+21/3 3/30+21/6 9/30+21/3 3/30+63/3 3/90+21/3 3/30+21/9 15/30+21/3 3/30+21/15 21/30+21/3