Add 21/3 and 4/10
1st number: 7 0/3, 2nd number: 4/10
21/3 + 4/10 is 37/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,
21/3 = 21 × 10/3 × 10 = 210/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
4/10 = 4 × 3/10 × 3 = 12/30 - Add the two like fractions:
210/30 + 12/30 = 210 + 12/30 = 222/30 - 222/30 simplified gives 37/5
- So, 21/3 + 4/10 = 37/5
In mixed form: 72/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3+4/10 21/3+8/10 21/6+4/10 21/3+4/20 63/3+4/10 21/3+12/10 21/9+4/10 21/3+4/30 21/3+20/10 21/15+4/10 21/3+4/50 21/3+28/10 21/3+4/70