Add 21/5 and 50/20
1st number: 4 1/5, 2nd number: 2 10/20
21/5 + 50/20 is 67/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
21/5 = 21 × 4/5 × 4 = 84/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
50/20 = 50 × 1/20 × 1 = 50/20 - Add the two like fractions:
84/20 + 50/20 = 84 + 50/20 = 134/20 - 134/20 simplified gives 67/10
- So, 21/5 + 50/20 = 67/10
In mixed form: 67/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+50/20 21/10+50/20 21/5+50/40 63/5+50/20 21/15+50/20 21/5+50/60 21/25+50/20 21/35+50/20