Question

Daca a*b=9\5 si c=20\27,atunci a*(b*c) este...

Answer 1

Inmultirea este operatie asociativa.
a*(b*c)=(a*b)*c=9/5*20/27=4/3

Answer 2

 $a\cdot{b}=\frac{9}{5} \;si\;c=\frac{20}{27}\rightarrow\;a\cdot{b}\cdot{c}=\frac{\not9^1}{\not5_1}\cdot\frac{\not{20}^4}{\not{27}_3}=4/3$