GCD5 GCD and Reducing Fractions to Lowest Terms

In GCD2 and GCD3, we learned how to get the Greatest Common Divisor (GCD) of two or more numbers by listing. In GCD4, we learned how to get the use prime factorization to get the GCD of two or more numbers. In the video above, we introduce one of the most popular applications of GCD which is reducing fractions to lowest terms.


Reduce the following fractions two lowest terms.

1.) 6/9

2.) 14/28

3.) 15/20

4.) 12/42

5.) 18/81

Answers to Practice

1.) 2/3

2.) 1/2

3.) 3/4

4) 2/7

5.) 2/9

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