Question

Simplify it
It is urgent​

Answer 1

Answer:

(2^-1 × 5^-1)^-1 ÷ 4^-1

(1/2 × 1/5)^-1 ÷ 1/4

(1/10)^-1 ÷ 1/4

10 ÷ 1/4

10 × 4 =40