👤

10•20,5(2) Va roggggg!

Răspuns :

205,(2)
sau
20,522222222222222..... *10=205,222222....=205, (2)
10×20,5(2)
Putem calcula direct sau putem transforma:
10×20,5(2)=205,(2)
Sau
10×20,5(2)=10×(2052-205)/90=
10×1847/90=
18470/90=
Si facand impartirea, vom ajunge la acelasi rezultat:
18470/90=205,(2)