Question

Hi I am not good at math so I need help please

Answer 1

1) 3:2

2) 2:1 cm

3) 1:4 meters

4) 3:2

5) 2:1:3

Explanation:

1) 18:12 reduce --> 3:2

2) 30 - 20 = 10 ---> so 20:10= 2:1

3) 6x4= 24 so --> 6:26 reduce 1:4

4) 25-15= 10 so 15 red to 10 blue reduce ---> 3:2

5) 20 yellow 10 blue 30 red reduce---> 2:1:3