Răspuns:
Explicație pas cu pas:
2,(3) = (23-2)/9 = 21/9 = 7/3
0,75 = 75/100 = 3/4
2,5 = 25/10 = 5/2
176 : {2,5 - ( 1 - 1/5) + [2,(3) + 0,75]*6/37}
= 176 : [5/2 - 4/5 + (7/3 + 3/4)*6/37]
= 176 : [5/2 - 4/5 + (28/12 + 9/12)*6/37]
= 176 : (5/2 - 4/5 + 37/12*6/37)
= 176 : (5/2 - 4/5 + 1/2)
= 176 : (6/2 - 4/5)
= 176 : (30/10 - 8/10)
= 176 : 22/10 = 176 * 10/22 = 80