Question

Ambele exerciții. Vă rog.​

Answer 1

Răspuns:

Explicație pas cu pas:

1,(6) = (16 - 1)/9 = 15/9 = 5/3

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

(3/5 *5/3 - 5/6) : (-1/6) = (1 - 5/6) : (-1/6) = 1/6 : (-1/6) = -1

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1/2 : [1/3 + 1/2 *(-3/4 + 1/2)]

= 1/2 : [1/3 + 1/2*(-3/4 + 2/4)]

= 1/2 : (1/3 - 1/2*1/4)

= 1/2 : (1/3 - 1/8)

= 1/2 : (8/24 - 3/24)

= 1/2 : 5/24

= 1/2 * 24/5

= 12/5