Add 4/2 and 21/80
1st number: 2 0/2, 2nd number: 21/80
4/2 + 21/80 is 181/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
4/2 = 4 × 40/2 × 40 = 160/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
21/80 = 21 × 1/80 × 1 = 21/80 - Add the two like fractions:
160/80 + 21/80 = 160 + 21/80 = 181/80 - So, 4/2 + 21/80 = 181/80
In mixed form: 221/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/2+21/80 4/2+42/80 12/2+21/80 4/2+63/80 4/6+21/80 20/2+21/80 4/10+21/80 28/2+21/80 4/14+21/80