Question

Given that a/b=2/5 and b/c= 3/4. Find a:b:c

Answer 1

Answer:

a:b:c = 6:15:20

Step-by-step explanation:

Given;

$\frac{a}{b} = \frac{2}{5} \ \ and \ \ \frac{b}{c} = \frac{3}{4}$

a:b:c is determined as follows;

a:b = 2:5    and      b:c = 3:4

find the common factors in both equation = b = 5 and 3

Then, multiply the first equation by 3 and second equation by 5, so that value of b in both equations will be the same.

a:b = 6:15    

b:c = 15:20

Thus, a:b:c = 6:15:20