(2a + 4b)/(2b) = 3.9 \\ (a)/(b) = what with full explanation please​

Question

`(2a + 4b)/(2b) = 3.9 \\ (a)/(b) = what`
with full explanation please​

Answer 1

Answer: 1.9

Work Shown:

`(2a+4b)/(2b) = 3.9\\\\(2a)/(2b)+(4b)/(2b) = 3.9\\\\(a)/(b)+2 = 3.9\\\\(a)/(b) = 3.9-2\\\\(a)/(b) = 1.9\\\\`