Question

If a /b = 7 / 4 find 5a+3b / 5a-3b =? (Componendo-dividendo sum)​

Answer 1

Answer:

47/23

Step-by-step explanation:

If a/b=7/4 then 5a = 5×7=35

3b =3×4=12

35+12/35-12

47/23

Answer 2

Given,

a/b = 7/4

5a = (7*5) = 35

3b = (4*3) = 12

5a/3b = 35/12

Applying Componendo and Dividendo, we get:

(5a+3b) / (5a-3b) = (35+12) / (35-12)

= 47/23

I hope this helps.