Question

1/5 ÷ 2/9 ..........​

Answer 1

1/5 ÷ 2/9

1/5 × 9/2

= 9/10 ✓✓✓

Answer 2

`‡\:\:(1)/(5) / (2)/(9) \\ = (1)/(5) * (9)/(2) \\ = \boxed{(9)/(10)}✓`

9/10 is the right answer.