Question

Ex 4 va rog dau coroana

Answer 1

a) (2 + 1/3) : 7 = amplifici 2 cu 3

(6/3 + 1/3) : 7 =

7/3 * 1/7 = 1/3

b) 11 : (4 - 1/3) = amplifici 4 cu 3

11 : (12/3 - 1/3) =

11 : 11/3 =

11 * 3/11 = 3

c) (5 + 1/5) : 13/15 = amplifici 5 cu 5

(25/5 + 1/5) : 13/15 =

26/5 * 15/13 =

3*2 = 6

d) amplifici 2 cu 4, 1 cu 2

(8/4 - 1/4) : (2/2 - 1/2) =

7/4 : 1/2 =

7/4 * 2 = 7/2