Fraction to Decimal Conversion:
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A terminating decimal is a decimal number that has a finite number of digits after the decimal point. This occurs when the denominator (after simplifying the fraction) has no prime factors other than 2 or 5.
The calculator uses the following principles:
Where:
Termination Check: The calculator checks if the denominator's prime factors are only 2 and/or 5 after simplifying the fraction.
Details: Terminating decimals are important in precise calculations, financial computations, and when exact representations are needed. They contrast with repeating decimals which require special notation.
Tips: Enter the numerator and denominator as whole numbers. The denominator must be positive. The calculator will show the decimal equivalent and indicate whether it's terminating.
Q1: What makes a decimal terminate?
A: A fraction in lowest terms has a terminating decimal if and only if the denominator has no prime factors other than 2 or 5.
Q2: What's the difference between terminating and repeating decimals?
A: Terminating decimals end after a finite number of digits, while repeating decimals have an infinite repeating pattern.
Q3: Are all fractions with denominators that are powers of 2 or 5 terminating?
A: Yes, and any product of powers of 2 and 5 will also produce terminating decimals when the fraction is in simplest form.
Q4: What about fractions like 1/3?
A: 1/3 = 0.333... is a repeating decimal because 3 is a prime factor other than 2 or 5.
Q5: Can a fraction have both terminating and repeating representations?
A: No, a fraction has exactly one decimal representation - either terminating or repeating (or exact integer).