Not converting mixed numbers to decimals

Oct 13, 2025 by talynt.org 70 views

Introduction

In mathematics, ordering numbers from least to greatest is a fundamental concept that is essential for various mathematical operations and problem-solving techniques. In this article, we will explore how to order the given numbers: $4.\overline{7}, -4 \frac{8}{9}, 490\%, \text{ and } -4.9$ . We will break down each number and compare them to determine the correct order from least to greatest.

Understanding the Numbers

Before we proceed with ordering the numbers, let's understand what each number represents.

$4.\overline{7}$ : This is a repeating decimal, which means that the digit 7 repeats indefinitely. To convert this to a fraction, we can use the formula for infinite geometric series: $4.\overline{7} = 4 + \frac{7}{9} = \frac{36}{9} + \frac{7}{9} = \frac{43}{9}$ .
$-4 \frac{8}{9}$ : This is a mixed number, which represents a combination of a whole number and a fraction. To convert this to a decimal, we can divide the numerator by the denominator: $-4 \frac{8}{9} = -4 + \frac{8}{9} = -4 + 0.888... = -3.111...$
$490\%$ : This is a percentage, which represents a value as a fraction of 100. To convert this to a decimal, we can divide the percentage by 100: $490\% = \frac{490}{100} = 4.9$ .
$-4.9$ : This is a decimal number, which represents a value between two integers.

Ordering the Numbers

Now that we have understood the numbers, let's compare them to determine the correct order from least to greatest.

$-4.9$ : This is the smallest number, as it is a negative decimal value.
$-4 \frac{8}{9}$ : This is the second smallest number, as it is a negative mixed number value.
$4.\overline{7}$ : This is the third number, as it is a positive repeating decimal value.
$490\%$ : This is the largest number, as it is a positive percentage value.

Therefore, the correct order from least to greatest is:

$-4.9, -4 \frac{8}{9}, 4.\overline{7}, 490\%$

Conclusion

Ordering numbers from least to greatest is an essential concept in mathematics that requires a thorough understanding of the numbers being compared. By breaking down each number and comparing them, we can determine the correct order from least to greatest. In this article, we have explored how to order the given numbers: $4.\overline{7}, -4 \frac{8}{9}, 490\%, \text{ and } -4.9$ . We have determined that the correct order from least to greatest is $-4.9, -4 \frac{8}{9}, 4.\overline{7}, 490\%$ .

Discussion

What are some common mistakes that people make when ordering numbers from least to greatest? How can we avoid these mistakes and ensure that we are ordering numbers correctly?

Answer

Some common mistakes that people make when ordering numbers from least to greatest include:

Not converting mixed numbers to decimals: Mixed numbers can be converted to decimals by dividing the numerator by the denominator. Failing to do this can lead to incorrect ordering.
Not converting percentages to decimals: Percentages can be converted to decimals by dividing the percentage by 100. Failing to do this can lead to incorrect ordering.
Not comparing numbers carefully: When comparing numbers, it is essential to consider the sign (positive or negative) and the magnitude (size) of the numbers. Failing to do this can lead to incorrect ordering.

To avoid these mistakes and ensure that we are ordering numbers correctly, we can follow these tips:

Convert mixed numbers to decimals: Divide the numerator by the denominator to convert mixed numbers to decimals.
Convert percentages to decimals: Divide the percentage by 100 to convert percentages to decimals.
Compare numbers carefully: Consider the sign (positive or negative) and the magnitude (size) of the numbers when comparing them.

By following these tips, we can ensure that we are ordering numbers correctly and avoiding common mistakes.

Final Answer

Q&A: Ordering Numbers from Least to Greatest

Q: What is the correct order from least to greatest for the numbers $4.\overline{7}, -4 \frac{8}{9}, 490\%, \text{ and } -4.9$ ?

A: The correct order from least to greatest is $-4.9, -4 \frac{8}{9}, 4.\overline{7}, 490\%$ .

Q: How do I convert a mixed number to a decimal?

A: To convert a mixed number to a decimal, divide the numerator by the denominator. For example, $-4 \frac{8}{9} = -4 + \frac{8}{9} = -4 + 0.888... = -3.111...$

Q: How do I convert a percentage to a decimal?

A: To convert a percentage to a decimal, divide the percentage by 100. For example, $490\% = \frac{490}{100} = 4.9$

Q: What are some common mistakes that people make when ordering numbers from least to greatest?

A: Some common mistakes that people make when ordering numbers from least to greatest include:

Not converting mixed numbers to decimals: Mixed numbers can be converted to decimals by dividing the numerator by the denominator. Failing to do this can lead to incorrect ordering.
Not converting percentages to decimals: Percentages can be converted to decimals by dividing the percentage by 100. Failing to do this can lead to incorrect ordering.
Not comparing numbers carefully: When comparing numbers, it is essential to consider the sign (positive or negative) and the magnitude (size) of the numbers. Failing to do this can lead to incorrect ordering.

Q: How can I avoid these mistakes and ensure that I am ordering numbers correctly?

A: To avoid these mistakes and ensure that you are ordering numbers correctly, you can follow these tips:

Convert mixed numbers to decimals: Divide the numerator by the denominator to convert mixed numbers to decimals.
Convert percentages to decimals: Divide the percentage by 100 to convert percentages to decimals.
Compare numbers carefully: Consider the sign (positive or negative) and the magnitude (size) of the numbers when comparing them.

Q: What is the importance of ordering numbers from least to greatest?

A: Ordering numbers from least to greatest is an essential concept in mathematics that requires a thorough understanding of the numbers being compared. By breaking down each number and comparing them, we can determine the correct order from least to greatest. This is crucial in various mathematical operations and problem-solving techniques.

Q: Can you provide more examples of ordering numbers from least to greatest?

A: Here are a few more examples:

$-3.5, 2 \frac{1}{4}, 3.2, 4\%$ : The correct order from least to greatest is $-3.5, 2 \frac{1}{4}, 3.2, 4\%$ .
$-2 \frac{3}{4}, 1.5, 2.8, 3\%$ : The correct order from least to greatest is $-2 \frac{3}{4}, 1.5, 2.8, 3\%$ .
$-1.2, 2 \frac{2}{3}, 3.5, 4\%$ : The correct order from least to greatest is $-1.2, 2 \frac{2}{3}, 3.5, 4\%$

Conclusion

Final Answer

The final answer is: A. $-4.9, -4 \frac{8}{9}, 4.\overline{7}, 490\%$