Add 4/2 and 21/20
1st number: 2 0/2, 2nd number: 1 1/20
4/2 + 21/20 is 61/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
4/2 = 4 × 10/2 × 10 = 40/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
21/20 = 21 × 1/20 × 1 = 21/20 - Add the two like fractions:
40/20 + 21/20 = 40 + 21/20 = 61/20 - So, 4/2 + 21/20 = 61/20
In mixed form: 31/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/2+21/20 4/2+42/20 4/2+21/40 12/2+21/20 4/2+63/20 4/6+21/20 4/2+21/60 20/2+21/20 4/10+21/20 28/2+21/20 4/14+21/20