How do you write 7 $\dfrac{1}{4}$ as an improper fraction?

Hint: This is a basic question based on the knowledge of fraction. At first, you can see that the given question is the mixed fraction. So, first, you will solve the mixed fraction. Then you will get an improper fraction in which you need to check if that improper fraction is in the lowest form or not. If it is in the lowest form then it would be your answer else you have to convert it to the lowest form. So let us see how we can solve this problem.

Complete Step by Step Solution:
In the given question 7 $\dfrac{1}{4}$ is needed to get converted into an improper fraction.
As 7 $\dfrac{1}{4}$ this is a mixed fraction, we will solve this first to make it an improper fraction.
So, 7 $\dfrac{1}{4}$ = $\dfrac{{28 + 1}}{4}$
$ = \dfrac{{29}}{4}$

As, this improper fraction is already in the lowest form so, 7 $\dfrac{1}{4}$ $ = \dfrac{{29}}{4}$.

Note:
In the above solution, we solved a mixed fraction. A mixed fraction has two parts: one is the whole number and the other is the fractional part. For solving the mixed fraction, we first multiply the denominator with the whole number, and then we add the result with the numerator. There are other forms of the fraction as well Like fraction, Unlike fraction, Improper fraction, Proper fraction, Mixed fraction, and Equivalent fraction.