Răspuns :
[1/9 + 18/19 • (75 - 66 - 28)/180] • 40 =
[1/9 + 18/19 • (-19/180)] • 40 =
(1/9 - 1/10) • 40 =
1/90 • 40 =
4/9 =
0,(4)
[1/9 + 18/19 • (-19/180)] • 40 =
(1/9 - 1/10) • 40 =
1/90 • 40 =
4/9 =
0,(4)