Repeating Decimal to Percent Formula:
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This calculator converts a fraction (a/b) to its equivalent repeating decimal and percentage form. Repeating decimals are numbers that continue infinitely with a repeating pattern, indicated by a bar (vinculum) over the repeating digits.
The calculator uses the formula:
Where:
Explanation: The calculator first divides the numerator by the denominator to get the decimal representation, then multiplies by 100 to convert to percentage.
Details: Understanding repeating decimals is fundamental in mathematics, especially when working with fractions, ratios, and percentages in real-world applications.
Tips: Enter the numerator and denominator (must be positive integers, denominator cannot be zero). The calculator will show both the repeating decimal representation and its percentage equivalent.
Q1: What is bar notation?
A: Bar notation is a way to represent repeating decimals by placing a bar over the digits that repeat infinitely.
Q2: How do you convert 1/3 to percent?
A: 1 ÷ 3 = 0.333... (repeating) × 100 = 33.333...% (repeating).
Q3: What fractions produce repeating decimals?
A: Fractions whose denominators have prime factors other than 2 or 5 produce repeating decimals.
Q4: Can all repeating decimals be converted to fractions?
A: Yes, all repeating decimals are rational numbers and can be expressed as fractions.
Q5: How accurate is this calculator?
A: The calculator shows up to 10 decimal places and identifies repeating patterns for visualization.