Question

If a : b = 3:4 and b:c= 5:9, then a : b:c is​

Answer 1

Answer:

a:b:c = 15:20:36

Step-by-step explanation:

To find a : b : c, b is made same in both the ratios. L.C.M of 4 and 5 is 20

a:b= 3:4 = 3×5 : 4×5 = 15:20

b:c= 5:9 = 5×4 : 9×4= 20:36

Then, a:b:c = 15:20:36