Question

Find the value of (8^-1-9^-1)^-1÷(4^-1-9^-1)^-1

Answer 1

10

Step-by-step explanation:

(1/8-1/9)^-1 ÷ (1/4-1/9)^-1

(1/72)^-1 ÷ (5/36)^-1

72 ÷ 36/5

72*5/36

360/36

10

Answer 2

Answer:10

Step-by-step explanation: