Question

26 puncte
Exercitiul 7 va rog
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Answer 1

Răspuns:

- 6

Explicatie pas cu pas:

1,(3) × ( - 1 1/4 + 1/2) : 0,1(6) =

1,(3) = ( 13 - 1) / 9 = 12/9 = 4/3

( am simplificat cu 3 )

1 1/4 = ( 1 × 4 + 1) / 4 = 5/4

0,1(6) = ( 16 - 1) / 90 = 15/90 = 1/6

( am simplificat cu 15)

4/3 × ( - 5/4 + 1/2) : 1/6 =

4/3 × ( - 5 +2 × 1) / 4 × 6 / 1 =

4/3 × ( - 3/4) × 6 =

- 1 × 6 =

- 6

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