Decimals Explained

Let’s begin by looking at what decimals look like. Decimals are numbers that have decimals points at some position in these numbers.

This lesson is a part of Onsego GED Prep.

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1. Which of the following decimals is equal to \(\frac{1}{100}\)?

A.\(0.1\)

B.\(1.1\)

C.\(0.01\)

D.\(1.01\)

Question 1 of 3

2. Which of the following decimals is equal to \(\frac{3}{10}\)?

A.\(0.3\)

B.\(0.03\)

C.\(1.03\)

D.\(0.003\)

Question 2 of 3

3. Which of the following decimals is equal to \(\frac{1}{2}\)?

A.\(0.1\)

B.\(0.2\)

C.\(1.2\)

D.\(0.5\)

Question 3 of 3

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• Rules of Exponents

Video Transcription

Today, we’ll start exploring what decimals are and how they relate to fractions. Decimals are a different way to show fractions and can be used in many everyday situations.
First, let’s understand what a decimal is. A decimal is a way of representing numbers that are not whole. It uses a decimal point to show values smaller than one. For example, 0.5 is a decimal. It’s like saying ‘half’ but in a different way.
You might already know some fractions as decimals. Like 1/2 is the same as 0.5. But how do we convert other fractions into decimals? It’s simpler than you might think.
Think of a fraction as a division problem. The top number (numerator) is what you’re dividing, and the bottom number (denominator) is what you’re dividing by. So, to turn a fraction into a decimal, just divide the top number by the bottom number.
For example, let’s convert the fraction 3/4 into a decimal. Divide 3 by 4, and you get 0.75. So, 3/4 as a decimal is 0.75.
Another example is 1/8. If you divide 1 by 8, you get 0.125. So, 1/8 as a decimal is 0.125.
Decimals are everywhere around us. They are used in money, measurements, and even when we check the time. For instance, if something costs $3.50, the ‘.50’ is a decimal representing 50 cents, which is half of a dollar.
Remember, converting fractions to decimals is just like doing a simple division. And decimals help us understand and use numbers in a more practical way, especially when dealing with parts of a whole.
In summary, today we’ve learned what decimals are and how to convert fractions into decimals. It’s a handy skill, especially when fractions get a bit tricky. Keep practicing, and you’ll find decimals make a lot of sense!

Last Updated on October 20, 2025.