Question

Calculează:1/2(1-1/2):[1/5+4×(1/3+1/3:2)]+1/11
Va rog explicați!!

Answer 1

1/2(1-1/2):[1/5+4×(1/3+1/3:2)]+1/11 = 
= 1/2(2/2-1/2) : {1/5+4x[1/3 + (1/3)x(1/2)]} + 1/11 = 
= 1/2 x 1/2 : [1/5+4x(1/3 + 1/6)] + 1/11 = 
= 1/2 x 1/2 : [1/5+4x(2/6+1/6)] + 1/11 = 
= 1/2 x 1/2 : (1/5 + 4x3/6) + 1/11 = 
= 1/2 x 1/2 : (1/5 + 4x1/2) + 1/11 = 
= 1/2 x 1/2 : (1/5 + 2) + 1/11 = 
= 1/2 x 1/2 : (1/5 + 10/5) + 1/11 = 
= 1/2 x 1/2 : (11/5) + 1/11 = 
= 1/2 x 1/2  x 5/11 + 1/11 = 
= 5/44 + 1/11 = 
= 5/44 + 4/44 = 
= 9/44