Question

if a is divisible by b and b is divisible by a then what can you say about 'a' and 'b' ?

Answer 1

Hello friend, 
Here's your answer:

If a divides b without a remainder and b divides a without a remainder, then a=b.

Let's take an example :
a = 10
b = 10

So a/b = 1, b/a = 1.
Hence proved. 

Hope my answer helps you. 

Answer 2

hello friend,
here a is divisible by b and b is divisible by a means
a and b are rational numbers and both are not equal to 0.