Add 21/5 and 2/10
1st number: 4 1/5, 2nd number: 2/10
21/5 + 2/10 is 22/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 5 × 2 = 10,
21/5 = 21 × 2/5 × 2 = 42/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
2/10 = 2 × 1/10 × 1 = 2/10 - Add the two like fractions:
42/10 + 2/10 = 42 + 2/10 = 44/10 - 44/10 simplified gives 22/5
- So, 21/5 + 2/10 = 22/5
In mixed form: 42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+2/10 21/5+4/10 21/10+2/10 21/5+2/20 63/5+2/10 21/5+6/10 21/15+2/10 21/5+2/30 21/25+2/10 21/5+2/50 21/5+14/10 21/35+2/10 21/5+2/70