Express $\dfrac{9}{{100}}$ as a percentage.

Hint- Here, we are given with a number and we have to express that number as a percentage so we will multiply the given number by 100 in order to express the number in terms of percent.

“Complete step-by-step answer:”
As we know that any number x can be expressed in terms of percentage by simply multiplying that number by 100.
i.e., Number x can be expressed in terms of percentage as $\left( {x \times 100} \right)$ percentage.
By using the above mentioned concept, we can express the given number $\dfrac{9}{{100}}$ in terms of percentage as $\left( {\dfrac{9}{{100}}} \right) \times 100 = 9$ percent.
Therefore, the number $\dfrac{9}{{100}}$ is equivalent to 9 percent when expressed as percentage.

Note- In the problem, if instead of expressing the given number in terms of percentage we are given with a percentage which needs to be expressed in terms of the number (i.e., we have to remove the percent sign). This can be done by simply dividing the given percentage by 100 which will give us the required number converted from the given percentage.