Add 21/10 and 9/25
1st number: 2 1/10, 2nd number: 9/25
21/10 + 9/25 is 123/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 25 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 10 × 5 = 50,
21/10 = 21 × 5/10 × 5 = 105/50 - Likewise, for the 2nd fraction, since 25 × 2 = 50,
9/25 = 9 × 2/25 × 2 = 18/50 - Add the two like fractions:
105/50 + 18/50 = 105 + 18/50 = 123/50 - So, 21/10 + 9/25 = 123/50
In mixed form: 223/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10+9/25 21/10+18/25 21/20+9/25 21/10+9/50 63/10+9/25 21/10+27/25 21/30+9/25 21/10+9/75 21/10+45/25 21/50+9/25 21/10+63/25 21/70+9/25