Add 16/20 and 21/5
1st number: 16/20, 2nd number: 4 1/5
16/20 + 21/5 is 5/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
16/20 = 16 × 1/20 × 1 = 16/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
21/5 = 21 × 4/5 × 4 = 84/20 - Add the two like fractions:
16/20 + 84/20 = 16 + 84/20 = 100/20 - 100/20 simplified gives 5/1
- So, 16/20 + 21/5 = 5/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+21/5 16/20+42/5 16/40+21/5 16/20+21/10 48/20+21/5 16/20+63/5 16/60+21/5 16/20+21/15 80/20+21/5 16/20+21/25 16/20+21/35