Question

Harry was 120 cm tall. He's little brother is 1/3 of his height. How tall was harry's brother? ?

Answer 1

He is 40 cm tall.

Just divide 120 by 3.

Hope I helped! <3

Answer 2

First you have to take Harry's height(120) and divide it by 3(because he is harry's age split into 3). 
Once you do that the right way you should end up with 40cm