Question

if a:b=5:7 and a:c= 3:4 find b:c and a:b:c​

Answer 1

Step-by-step explanation:

a:b=5:7=15:21

Now, a:c=3:4=15:20

Therefore,

a:b:c=15:21:20

And,

b:c=21:20

Hope this helps you dear.....

Answer 2

a:b=5:7
a:c=3:4
a:b:c=15:21:20
b:c=21:20