Decimal to Fraction Calculator

Decimal to Fraction Calculator

  • Enter your decimal number in the "Enter a Decimal Number" field.
  • Click "Convert to Fraction" to convert the decimal to a fraction.
  • The simplified fraction will be displayed along with detailed calculations and explanations.
  • You can copy the fraction result to the clipboard by clicking "Copy Results".
  • Your calculation history will be displayed below.
  • To clear the results and start a new calculation, click "Clear Results".
Calculation History

    A decimal to fraction calculator is a tool that helps convert decimal numbers to equivalent fractions. Fractions are a fundamental mathematical concept representing parts of a whole. Converting decimals to fractions is essential in various fields, including mathematics, science, and engineering.

    Concepts and Formulae

    The concept of converting decimals to fractions involves understanding the relationship between decimal representations and fractional representations of numbers. Decimals are based on the base-10 system, where each digit represents a power of 10. Fractions, on the other hand, represent parts of a whole using a numerator and a denominator.

    To convert a decimal number to a fraction, follow these steps:

    1. Identify the whole number part: The whole number part of the decimal is the integer part before the decimal point. If there is no whole number part, assume it is zero (0).
    2. Separate the decimal part: The decimal part is the part of the number after the decimal point.
    3. Count the decimal places: Count the number of digits to the right of the decimal point.
    4. Write the denominator: The denominator of the fraction is 10 raised to the power of the number of decimal places.
    5. Multiply the decimal part: Multiply the decimal part by the denominator to obtain the numerator of the fraction.
    6. Simplify the fraction: If possible, simplify the fraction by finding the greatest common factor (GCD) of the numerator and denominator and dividing both by the GCD.

    For example, to convert the decimal number 0.35 to a fraction, follow these steps:

    1. Whole number part: 0
    2. Decimal part: 0.35
    3. Decimal places: 2
    4. Denominator: 100
    5. Numerator: 0.35 × 100 = 35
    6. Simplified fraction: 35/100 = 7/20

    Therefore, 0.35 is equivalent to the fraction 7/20.

    Benefits of Decimal to Fraction Calculator

    Using a decimal to fraction calculator offers several advantages, including:

    1. Efficiency: Manually converting decimals to fractions can be time-consuming and error-prone, especially when dealing with long decimals or complex calculations. A decimal to fraction calculator can quickly and accurately convert any decimal number to a simplified fraction.
    2. Accuracy: Manual calculations are susceptible to errors, such as misplacing decimal points or overlooking simplifications. A decimal to fraction calculator eliminates human error and ensures precise results.
    3. Versatility: These calculators can handle a wide range of decimal numbers, from simple decimals to complex decimals with multiple decimal places.
    4. Accessibility: Decimal to fraction calculators are readily available online and in software applications, making them accessible to a wide range of users.

    Interesting Facts

    1. History of Decimals and Fractions: Decimals and fractions have been used for centuries to represent numbers. Decimals originated in India around the 6th century CE, while fractions have been used since ancient civilizations.
    2. Applications of Decimals and Fractions: Decimals and fractions are widely used in various fields, including mathematics, science, engineering, finance, and everyday life.
    3. Interconversion of Decimals and Fractions: Converting decimals to fractions and vice versa is essential for understanding and manipulating numerical representations.


    1. Barrow, J. D. (2001). Infinite decimals and rythmic fractions. Cambridge University Press.
    2. Burton, R. W. (1997). Fractions. Heinemann.
    3. Sowder, J. T., & Sowder, J. L. (2007). Mathematical reasoning and problem-solving (5th ed.). W.H. Freeman and Company.


    Decimal to fraction calculators are valuable tools that simplify decimal-fraction conversions and ensure accuracy. They are widely used in various fields, including mathematics, science, and engineering, where precise numerical representations are essential for effective communication and problem-solving. Understanding the concepts behind decimal-fraction conversions and utilizing decimal to fraction calculators can enhance one’s mathematical skills and problem-solving abilities.

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