Answer:
\(\frac{321}{100}\).
Step-by-step explanation:
Given : 3.21
To find : Explain how to write the rational number.
Solution : We have given 3.21
We can remove the decimal.
We can see there are two numbers after decimal so, we write the 100 in denominator.
\(\frac{321}{100}\).
So, this is the \(\frac{a}{b}\).
a = 321 , b =100
Therefore, \(\frac{321}{100}\).