so lon bang 5/7 tong hai so. hieu hai so bang 48. tim so be
so lon bng 5/7 tong 2 so . hieu 2 so bang 48 . tim o be
hieu hai so la 128 so lon bang 7 lan so be la 2 don vi tim so lon
Hieu cua 2 so la 38,4 .Khi them vao so lon 4,2 va them vao so be 1,4 thi so be bang 5/7 so lon .Tim hai so luc ban dau
Hieu hai so bang 32.4.Tim hai so do biet rang so be bang 0.1lan so lon
tim hai so biet tong hai so do bang 125% so lon hieu cua hai so lon hon so be 57 ,5 don vi
Hieu cua hai so la 36 . So lon bang 5/3 so be .Tim hai so do ?
biet hieu 2 so bang 60% so be, tong hai so bang 266,5. Tim so lon
tim hai so biet rang hieu cua so lon va so be bang thuong cua so lon va so be va bang 0,75