Question

{3/8;4/5;1/2} și {1/4;8/15;1/3} verificati daca se stabileste o proportionalitate directa

Answer 1

3/8 : 1/4 = 4/5 :8/15 =1/2 :1/3
3/8 × 4= 4/5 × 15/8 = 1/2 × 3
12/8 = 60/40= 3/2
3/2= 3/2=3/2 => proportionalitate directa