Table of Content
Type your fraction and see the decimal right away. Keep reading to learn four easy methods you can use by hand, no calculator needed.
What Is a Fraction and a Decimal?
A fraction and a decimal are two simple ways to show the same value. You will see them in daily life, like in cooking, measurements, prices, and school math.
What is a fraction?
A fraction shows a part of a whole. It is written with two numbers, like 1/2 or 3/4.
- The top number is the numerator. It tells how many parts you have.
- The bottom number is the denominator. It tells how many equal parts make one whole.
Example:
If a pizza is cut into 4 equal slices and you eat 3 slices, that is 3/4 of the pizza.
Fractions can also be:
- Proper (top number is smaller): 3/5
- Improper (top number is bigger): 7/4
- Mixed number (a whole number and a fraction): 1 3/4
What is a decimal?
- A decimal is another way to write a number using a dot (.). You may see decimals like 0.5, 0.75, or 2.25. Decimals are helpful because they make it easy to compare numbers and do quick calculations.
Examples
- 0.5 is the same as one half
- 2.25 means 2 whole units and a quarter more 3
How fractions turn into decimals
A fraction is just division written in a simple form. The line in a fraction tells you to divide the top number by the bottom number.
Quick rule
To get a decimal, divide the numerator by the denominator.
Examples
- 1/2 = 1 ÷ 2 = 0.5
- 3/4 = 3 ÷ 4 = 0.75
- 7/4 = 7 ÷ 4 = 1.75
Why it helps
Fractions are common in recipes and measurements. Decimals are used more in prices, spreadsheets, and calculators. When you can switch between them, you understand numbers faster and make fewer errors.
How to Convert a Fraction to a Decimal
You can write the same number in different ways, such as a fraction, a decimal, or a percent. Sometimes you need to switch formats to make the number easier to use or compare.
There are a few simple ways to change a fraction into a decimal. Let’s start with the quickest one.
Convert a Fraction to a Decimal with a Calculator
A fraction is really just division.
- The numerator is the top number.
- The denominator is the bottom number.
Formula:
Decimal = numerator ÷ denominator
That means you divide the top number by the bottom number to get the decimal.
Example: Convert 1/8 to a decimal
1 ÷ 8 = 0.125
So, 1/8 = 0.125.
Convert a Fraction to a Decimal with Long Division
Long division is a great method when you want to convert a fraction to a decimal by hand. It works the same way as normal division—just written step by step.
Pick the numbers
The numerator (top number) is the number you divide (dividend).
The denominator (bottom number) is the number you divide by (divisor).
Set up long division
Write it like a division problem: numerator ÷ denominator.
If the top number is smaller than the bottom number, add a decimal point and then add zeros (as needed) to keep dividing.
Divide to get the decimal
Now divide just like you normally would. Each step gives you the next digit of the decimal.
Tip: If you want to double-check your work, a long division calculator can show the steps and the final decimal result.
Convert a Fraction to a Decimal by Simplifying First
Another easy way to turn a fraction into a decimal is to change it into a fraction out of 100. It works well because decimals are based on tens, and 100 is a power of 10.
Turn the denominator into 100
Find the number you must multiply the denominator by to reach 100.
Multiplier = 100 ÷ denominator
Then multiply both the numerator and denominator by that same multiplier.
Write it as a decimal
Once your fraction is out of 100, you can write it as a decimal by moving the decimal point two places left (because 100 has two zeros).
Example: Convert 1/16 to a decimal
Find the multiplier
100 ÷ 16 = 6.25
Multiply the numerator and denominator
Numerator: 1 × 6.25 = 6.25
Denominator: 16 × 6.25 = 100
So:
1/16 = 6.25/100
Step 3: Move the decimal two places left
6.25/100 = 0.0625
Final answer: 1/16 = 0.0625
Note: This method is best when the denominator can reach 10, 100, 1000, and so on without messy numbers. Otherwise, division is usually faster.
Use a Fraction to Decimal Chart
If you want a quick answer, a fraction to decimal chart can help. Instead of doing division, you can match your fraction with its decimal value in a table. This is useful for common fractions you see in cooking, measurements, and everyday math.
Below is a fraction to decimal chart with popular fractions and their decimal equivalents (up to a denominator of 20). Use it as a fast reference when you need a decimal right away.
Fraction to Decimal Chart
| Fraction | Decimal |
| 1/2 | 0.5 |
| 1/3 | 0.3333 |
| 2/3 | 0.6667 |
| 1/4 | 0.25 |
| 3/4 | 0.75 |
| 1/5 | 0.2 |
| 2/5 | 0.4 |
| 3/5 | 0.6 |
| 4/5 | 0.8 |
How to Convert a Mixed Fraction to a Decimal
A mixed fraction (also called a mixed number) has a whole number and a fraction together, like 1 3/4.
The easiest way to convert it to a decimal is to turn it into an improper fraction first. After that, you can convert it using division or any method you already learned above.
Change the mixed fraction into an improper fraction
Use this simple rule:
(whole number × denominator) + numerator = new numerator
Keep the same denominator.
Example: Convert 1 3/4 to an improper fraction
- Multiply the whole number by the denominator:
- 1 × 4 = 4
- Add the numerator:
- 4 + 3 = 7
- Keep the same denominator:
- So, 1 3/4 = 7/4
Convert the improper fraction to a decimal
Now divide the numerator by the denominator:
7 ÷ 4 = 1.75
Final answer: 1 3/4 = 1.75
Tip: You can use the same steps for any mixed fraction. Convert it to an improper fraction first, then divide to get the decimal
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Frequently Asked Questions
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Yes, fractions can be converted into decimals. You do it by dividing the numerator by the denominator. For example, 3/4 becomes 3 ÷ 4 = 0.75. If the fraction is a mixed number (like 2 1/3), keep the whole number on the left, then convert the fraction part to a decimal and add it. For instance, 2 1/3 = 2 + (1 ÷ 3) = 2.3333…
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To turn a fraction into a decimal, divide the top number by the bottom number. The top number is the numerator, and the bottom number is the denominator. For example, 3/4 becomes 3 ÷ 4 = 0.75. If you have a mixed number like 2 1/2, keep the 2 and convert 1/2 to 0.5, so the final answer is 2.5.
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We convert fractions to decimals to make numbers easier to use and compare. Decimals are common in money, measurements, and calculators, so they often fit better in real life. Converting also helps when you need to add, subtract, or compare numbers that are written in different forms. When both numbers are in the same format, the math is quicker, and you are less likely to make mistakes.