Add 25/2 and 21/5
1st number: 12 1/2, 2nd number: 4 1/5
25/2 + 21/5 is 167/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
25/2 = 25 × 5/2 × 5 = 125/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
21/5 = 21 × 2/5 × 2 = 42/10 - Add the two like fractions:
125/10 + 42/10 = 125 + 42/10 = 167/10 - So, 25/2 + 21/5 = 167/10
In mixed form: 167/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/2+21/5 25/2+42/5 25/4+21/5 25/2+21/10 75/2+21/5 25/2+63/5 25/6+21/5 25/2+21/15 25/10+21/5 25/2+21/25 25/14+21/5 25/2+21/35