Explanation
Flip the second fraction 1/2 to get 2/1 aka 2.
When flipping that second fraction, the division flips to multiplication.
Here are the steps:
(5/6) ÷ (1/2)
(5/6) × (2/1)
(5×2)/(6×1)
(5×2)/(2×3)
5/3
Therefore,
(5/6) ÷ (1/2) = 5/3