What is 2 1/4 as a decimal?

There are different ways to represent the same number: fractions, decimals, and even percentages. In this particular guide, let’s explore how we can use the division method to convert 2 1/4 to a decimal.

Solution: 2 1/4 as a decimal is 2.25

Methods

First step – Making the fraction improper:

The first step to changing 2 1/4 into a decimal is to change it to an improper fraction. To do that, we need to multiply 2 by 4 and add its product to 1 in the numerator to get: 9/4. Now we will attempt to convert 9/4 to a decimal using one of the following methods:

Method 1 – Explanation using the division method:

One method to convert 9/4 to a decimal is by using the division method. Before we move ahead to the method, here is a quick recap on fractions: A fraction is a number representation that is broken down into two parts - the number on top is called the numerator, and the number on the bottom is called the denominator. To get a decimal using the division method, simply divide the numerator 9 by the denominator 4:

9 (numerator) ÷ 4 (denominator) = 2.25

And there you go! We got 2.25 as the answer when you convert 2 1/4 (or 9/4) to a decimal.

Method 2 – Explanation using the factors of 10 method:

In this method, we will convert the denominator into a power of 10 and then our fraction will be easier to calculate. If the denominator is a factor of a power of 10, like 2, 4, 5, 8, 10, 16, 20, 25, 40, 50 and so on, then we can convert it into a power of 10.

In order to make 4 a power of 10, we need to multiply by 25 (4 * 25 = 100. Since we multiplied the denominator by 25, we also need to multiply the numerator by 25 too:

925425=225100=2.25\frac{9 * 25}{4 * 25} = \frac{225}{100} = 2.25

And finally, you get 2.25 as your answer when you convert 2 1/4 (or 9/4) to a decimal.

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