Question

(2 2/5-12/5-1/6):[0,2(3)×10/7+1/2]
Va roggg​

Answer 1

Răspuns:

(2/5-12/5-1/6):[0,2(3)*10/7+1/2]

=(-10/5-1/6):[((23-2)/90)*10/7+1/2]

=(-2-1/6):(21/90*10/7+1/2)=

=(-12/6-1/6):(3/9*1+1/2)=

= -13/6:(1/3+1/2)=

=-13/6:(2/6+3/6)=

= -13/6:5/6 = -13/6*6/5 = -13/5

Explicație pas cu pas: