Question

please tell the answer​

Answer 1

1. 1:2

$\frac{1}{2}$

$0.5$

2. 9:20

$\frac{9}{20}$

$0.45$

I hope this will help you friend.

Answer 2

Answer:

1. 50% 4. 45%

Step-by-step explanation:

1. 1/2×100= 50%

4. 9/20×100=45%