Question

If a : b = 3 : 5, then find the value of
(1/a + 1/b) ÷ (1/a - 1/b)​

Answer 1

Answer:

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Answer 2

Answer:

Let a be 3x and b be 5x

So now our equation will be

(1/3x+1/5x)÷(1/3x-1/5x)

LCM OF 3x AND 5x will be 15x2

(5x+3x/15x2)÷(5x-3x/15x2)

8x/15x2÷2x/15x2

8x/15x2×15x2/2x

15x2 will get cancelled an 8x will be divided by 2x giving the result 4

4

Step-by-step explanation:

Hope it helped