21/40 as a decimal
Understand the Problem
The question is asking us to convert the fraction 21/40 into its decimal form. This involves dividing the numerator (21) by the denominator (40).
Answer
The decimal form of the fraction $\frac{21}{40}$ is $0.525$.
Answer for screen readers
The decimal form of the fraction $\frac{21}{40}$ is $0.525$.
Steps to Solve
- Set up the division
We will divide the numerator (21) by the denominator (40). This can be set up as:
$$ 21 \div 40 $$
- Perform the division
Since 21 is less than 40, we can express it with decimals. We can write it as:
$$ 21.000 \div 40 $$
- Calculate the decimal value
Now we can perform the division.
When we divide, we get:
$$ 21.000 \div 40 = 0.525 $$
- Write the final decimal result
The decimal form of the fraction $\frac{21}{40}$ is:
$$ 0.525 $$
The decimal form of the fraction $\frac{21}{40}$ is $0.525$.
More Information
Dividing a fraction into its decimal form is useful in various applications, such as calculating proportions or percentages. The decimal form can make comparisons simpler.
Tips
- Forgetting to add a decimal point when dividing. Always ensure to set up the number properly for division.
- Misplacing the decimal in the final answer. Double-check your placement based on the number of digits after the decimal point in the dividend.
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