Which pair of ratios do not form a true proportion? circle all that apply.

Rewrite each ratio as a fraction and reduce. If the reduced fractions are euqal, it is a proportion.

A. 20/5 = 4; 4/2 = 2; not a proportion

B. 3/4 = 3/4; 12/16 = 3/4; proportion

C. 18/8 = 9/4; 3/2 = 3/2; not a proportion

D. 12/24 = 1/2; 3/4 = 3/4; not a proportion

E. 6/9 = 2/3; 3/2 = 3/2; not a proportion

F. 8/6 = 4/3; 4/3 = 4/3; proportion

i only know the sequence of arithmetic it adds the first is 5+4 then it goes up as it adds to then it is 9+5 then 14+6 then to 20+7 and so on. 5,9,14,20,27,35.

step-by-step explanation:

idk

step-by-step explanation: