Add 3/30 and 21/5
1st number: 3/30, 2nd number: 4 1/5
3/30 + 21/5 is 43/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 5 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 5 × 6 = 30,
21/5 = 21 × 6/5 × 6 = 126/30 - Add the two like fractions:
3/30 + 126/30 = 3 + 126/30 = 129/30 - 129/30 simplified gives 43/10
- So, 3/30 + 21/5 = 43/10
In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30+21/5 3/30+42/5 3/60+21/5 3/30+21/10 9/30+21/5 3/30+63/5 3/90+21/5 3/30+21/15 15/30+21/5 3/30+21/25 21/30+21/5 3/30+21/35