Add 21/50 and 30/20
1st number: 21/50, 2nd number: 1 10/20
21/50 + 30/20 is 48/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 50 × 2 = 100,
21/50 = 21 × 2/50 × 2 = 42/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
30/20 = 30 × 5/20 × 5 = 150/100 - Add the two like fractions:
42/100 + 150/100 = 42 + 150/100 = 192/100 - 192/100 simplified gives 48/25
- So, 21/50 + 30/20 = 48/25
In mixed form: 123/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50+30/20 21/50+60/20 21/50+30/40 63/50+30/20 21/50+90/20 21/50+30/60