Răspunsuri

2014-10-02T17:27:27+03:00
30:1supra10-1supra10:3 = 
30x10/1-1/10x1/3=
300-3/10  aducem .a ac numiroe
3000-3/10=
2997/10=299.7
2014-10-02T17:27:32+03:00
Simplifica si o sa fie o operatie foarte usoara