Question

Find a ratio equivalent to 12/21 with lower terms

Answer 1

Here we are given the ratio 12 / 21.

In order to find its equivalent ratio with lower terms , we have to find common factor of 12 and 21 by which we can divide both the numbers.

So factors of 12 are 1, 2 ,3, 4.

Factors of 21 are 1, 3, 7.

So our common factor is 3 here.

dividing both numerator and denominator by 3 we have:

`(12/3)/(21/3)`

12 divided by 3 equals 4 and 21 divided by 3 equals 7.

So our new ratio becomes 4/7

Answer 2

Find factors of 12 and 21

Divide 3 from both numerator and denominator.

(12/21)/(3/3) = 4/7

4/7 is your ratio equivalent to 12/21

hope this helps