1,5(6) = 1 intreg (56-5)/90 = 1 intreg 51/90 = 141/90
0,8(3) = (83-8)/90 = 75/90 = 15/18 = 5/6
141/90 - (5/6)⁻¹:10⁻² + 5/6 =
141/90 - 6/5 x 100 + 5/6 =
141/90 - 120 + 5/6 =
Numitor comun 90
(141-10800+75)/90=
-10584/90=
-5292/45=
-117,6
Asta, daca ai scris corect exercitiul...
