Add 21/50 and 21/8
1st number: 21/50, 2nd number: 2 5/8
21/50 + 21/8 is 609/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
21/50 = 21 × 4/50 × 4 = 84/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
21/8 = 21 × 25/8 × 25 = 525/200 - Add the two like fractions:
84/200 + 525/200 = 84 + 525/200 = 609/200 - So, 21/50 + 21/8 = 609/200
In mixed form: 39/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50+21/8 21/50+42/8 21/50+21/16 63/50+21/8 21/50+63/8 21/50+21/24 21/50+21/40 21/50+21/56