Question

8a-5b 8a+5b
--------- = ----------
8c-5d 8c+5d

Prove a/b=c/d

Answer 1

Answer:

a=c b=d , 8=8,5=5 soab=cd

Answer 2

Answer:

Step-by-step explanation

8a – 5b/8c – 5d = 8a + 5b/8c + 5d

Applying alternendo

8a – 5b/8a + 5d = 8c – 5d/8c + 5d

Applying componendo  and Dividendo

8a – 5d + 8a + 5d/8a – 5b – 8a – 5d = 8c – 5d + 8c + 5d/8c – 5d – 8c – 5d

16a/-10b = 16c/- 10d

a/b = c/d  

Hence  proved.