Ratio and Proportion basics

ratio is a comparison of two like terms in its simplest form

Vedhaansh salary is 20000, thanvi salary is 25000.

 Ratio of vedhaansh and thanvi salary is 

20000:25000

=4:5.

Ratio should always be in the simplest form

---

The sum of two numbers is 117, the two numbers are in the ratio 6: 7.

find the numbers?