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decode EVERYTHING about fractions.
If possible without calculating: Tell whether the fraction is a lowest terms fraction.
Simplify (or reduce) a fraction by dividing both the numerator and the denominator by the simplification number.
A lowest terms fraction can not be simplified further.
If you would like to have a vivid explanation with a detailed example, please read the page Simplifying/Reducing Fractions - Learn this magic trick!
Step 1: Test, if the numerator or the denominator is equal to 1.
If the numerator or the denominator is equal to 1, the fraction is simplified to lowest terms.
Since this is not the case, go on to the next test:
Step 2: Test, if the numerator or the denominator is a prime number
If the numerator or the denominator is a prime number and they are not multiples, the fraction is simplified to lowest terms!
In this case the denominator (5) is a prime number.Since the numerator (100) and the denominator (5) are multiples, the fraction can be simplified further, namely the number 5.
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