Răspuns :
a x b = 6/7
c = 14/3
a x ( b x c ) = ( a x b ) x c = 6/7 x 14/3 = 6 x 14/7 x 3 = 2 x 2 = 4
" / " = supra
c = 14/3
a x ( b x c ) = ( a x b ) x c = 6/7 x 14/3 = 6 x 14/7 x 3 = 2 x 2 = 4
" / " = supra