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Convert the decimal to a fraction and reduce, if necessary.

Ask by Bradley Cole. in the United States
Mar 28,2025

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  1. Write the decimal as a fraction by using a power of 10 in the denominator. For example, if the decimal is
    then it can be written as
    because the decimal extends to three places.
  2. Find the greatest common divisor (GCD) of the numerator and the denominator. In this case, the GCD of 375 and 1000 is 125.
  3. Divide both the numerator and the denominator by the GCD to simplify the fraction:
Thus,

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Mind Expander

Let’s take the decimal 0.75 as an example to convert it to a fraction. You can think of 0.75 as 75/100. If we divide both the numerator and the denominator by 25 (their greatest common divisor), we get 3/4. Voila! We have reduced the fraction.
To convert a decimal to a fraction, start by writing the decimal divided by 1 (e.g., 0.8 becomes 0.8/1). Multiply the numerator and denominator by 10 for every digit to the right of the decimal point (0.8/1 becomes 8/10). Then, reduce it to its simplest form by finding the GCD. This method lays a foundation for handling more complex decimals as well!

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