Add 21/2 and 42/50
1st number: 10 1/2, 2nd number: 42/50
21/2 + 42/50 is 567/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 50 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 2 × 25 = 50,
21/2 = 21 × 25/2 × 25 = 525/50 - Likewise, for the 2nd fraction, since 50 × 1 = 50,
42/50 = 42 × 1/50 × 1 = 42/50 - Add the two like fractions:
525/50 + 42/50 = 525 + 42/50 = 567/50 - So, 21/2 + 42/50 = 567/50
In mixed form: 1117/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2+42/50 21/2+84/50 21/4+42/50 63/2+42/50 21/6+42/50 21/10+42/50 21/14+42/50