Repeating Decimal to Fraction Conversion:
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Repeating decimal to fraction conversion is the process of converting a decimal number with repeating digits into an equivalent fraction. This is particularly useful in mathematics to simplify calculations and understand exact values.
The calculator uses the following mathematical principle:
Where:
Explanation: The equation creates an equation where 10^n*x - 10^m*x equals an integer, allowing us to solve for x as a fraction.
Details: Converting repeating decimals to exact fractions is crucial in mathematics for precise calculations, avoiding rounding errors, and understanding exact values in algebra and number theory.
Tips: Enter the repeating decimal using bar notation (e.g., 0.3¯ for 0.333...) or ellipsis (e.g., 0.333...). The calculator will automatically detect the repeating pattern.
Q1: How do I represent repeating decimals?
A: You can use bar notation (e.g., 0.16¯6) or ellipsis (0.1666...). The calculator understands both formats.
Q2: What about non-repeating decimals?
A: For terminating decimals, simply convert by placing the decimal over the appropriate power of 10 (e.g., 0.75 = 75/100 = 3/4).
Q3: Can I convert mixed repeating decimals?
A: Yes, the calculator handles both purely repeating (0.¯3) and mixed repeating (0.16¯6) decimals.
Q4: Why does 0.999... equal 1?
A: Mathematically, 0.¯9 is exactly equal to 1. The calculator will show this result.
Q5: Are there limitations to this conversion?
A: The calculator works for all rational numbers (numbers that can be expressed as fractions). Irrational numbers like π cannot be expressed as exact fractions.