Question

a:b=3:4 and b:c = 5:9 find a:b:c​

Answer 1

Answer:

make the unit of b equal as it is common in both this can be done by taking lcm so lcm of 5and 4 is 20

now a/b = 15/20 and b/c = 20/36 ... therefore answer ie

15:20:36

I hope you got your answer