Add 4/2 and 80/21
1st number: 2 0/2, 2nd number: 3 17/21
4/2 + 80/21 is 122/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
4/2 = 4 × 21/2 × 21 = 84/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
80/21 = 80 × 2/21 × 2 = 160/42 - Add the two like fractions:
84/42 + 160/42 = 84 + 160/42 = 244/42 - 244/42 simplified gives 122/21
- So, 4/2 + 80/21 = 122/21
In mixed form: 517/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/2+80/21 4/2+80/42 12/2+80/21 4/6+80/21 4/2+80/63 20/2+80/21 4/10+80/21 28/2+80/21 4/14+80/21