Add 25/2 and 21/18
1st number: 12 1/2, 2nd number: 1 3/18
25/2 + 21/18 is 41/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
25/2 = 25 × 9/2 × 9 = 225/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Add the two like fractions:
225/18 + 21/18 = 225 + 21/18 = 246/18 - 246/18 simplified gives 41/3
- So, 25/2 + 21/18 = 41/3
In mixed form: 132/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/2+21/18 25/2+42/18 25/4+21/18 25/2+21/36 75/2+21/18 25/2+63/18 25/6+21/18 25/2+21/54 25/10+21/18 25/2+21/90 25/14+21/18