Math Problem Statement

Convert the fraction 4/7 to a decimal. If it's a repeating decimal, choose the one with the correct digits.

Solution

The problem in the image asks to convert the fraction 47\frac{4}{7} to a decimal and choose the correct answer, with the options provided.

Step 1: Convert the fraction to a decimal

To convert 47\frac{4}{7} to a decimal, divide 4 by 7:

470.5714285714285714\frac{4}{7} \approx 0.5714285714285714

This decimal is repeating with a pattern of "571428".

Step 2: Rounding the decimal

Since the question specifies to choose the one with the correct digits after rounding, we need to round the decimal accordingly:

  • 0.571 when rounded to three decimal places.
  • 0.5714 when rounded to four decimal places.

Conclusion

The correct answer that corresponds to the repeating decimal 47\frac{4}{7} and matches the rounding would be 0.571 when rounded to three decimal places.

Answer:

  • Option C: 0.571 is the correct answer.

Would you like any further details or explanations?

Here are five related questions to expand your understanding:

  1. How do you convert a repeating decimal back into a fraction?
  2. What is the decimal representation of the fraction 13\frac{1}{3}?
  3. Why do some fractions have repeating decimals, while others do not?
  4. How would you express 0.3330.333\ldots (repeating) as a fraction?
  5. How do you determine the number of digits in the repeating sequence of a fraction?

Tip: To identify whether a fraction will have a repeating or terminating decimal, check if the denominator has only the prime factors 2 and 5. If it does, the decimal will terminate; otherwise, it will repeat.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Fractions
Decimals
Repeating Decimals

Formulas

Division of numerator by denominator

Theorems

Division Theorem

Suitable Grade Level

Grades 5-7