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
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:
[tex] \frac{12/3}{21/3} [/tex]
12 divided by 3 equals 4 and 21 divided by 3 equals 7.
So our new ratio becomes 4/7
