How do you change 9/12912 to simplest form?

2 Answers
Aug 10, 2016

3/434

Explanation:

To express a fraction in color(blue)"simplest form"simplest form we need to find a number, the largest is preferable, that divides into both 9 and 12.
In this case the largest number that divides into both is 3.

Now we divide 9 and 12 by 3

rArr9/12=(9÷3)/(12÷3)=3/4" in simplest form"912=9÷312÷3=34 in simplest form

Usually, the task of dividing both numbers by 3 is performed mentally, stroking out the number and replacing it by the value remaining after division.This is called color(red)"cancelling"cancelling

rArr(cancel(9)^3)/(cancel(12)^4)=3/4

Jan 18, 2017

3/4

Explanation:

We must first find the largest common factor of the numerator and the denominator. The factors of 9 are 1, 3, and 9. The factors of 12 are 1, 2, 3, 4, 6, and 12. So the greatest common factor of 9 and 12 is 3. So you divide both sides by 3. So the simplest form of 9/12 is 3/4.