Các câu hỏi tương tự
1 .trung binh cong cua hai phan so la 5/12 .neu tang phan so thu nhat gap 2 lan thi trung binh cong cua chung bang 2/3 .tim hai phan so do .
2.trung binh cong cua ba phan so la 13 /36 .neu tang phan so thu nhat gap 2 lan thi trung binh cong cua chung bang 19/36 ,cho biet phan so thu hai lon hon phan so thu ba 1 /12. tim ba phan so do .
trung binh cong cua 3 so la 5/8 so thu ba bang trung binh cong cua so thu nhat va so thu hai so thu nhat hon so thu hai la 1/4 tim ba so do (viet dap so duoi dang so thap phan)
trung binh cong cua hai phan so bang 2 va 4/5 phan so thu hai hon phan so thu nhat la 1 va 3/4 tim phan so thu hai
TRUNG BINH CONG CUA HAI SO LA 23,8 BIET SO THU NHAT LON HON SO THU HAI 4,5 DON VI TIM SO THU NHAT
trung binh cong cua ba so la 4 tim ba so biet so thu hai hon so thu nhat la 1,2 va be hon so thu ba la 2,4
Tim 2 phan so biet trung binh cong cua nó la 7/15, biet phan so thu nhat la 3/4. Tim phan so thu hai
Trung binh cong cua ba so la 52. So thu ba bang trung binh cong cua so thu nhat va so thu hai. So thu nhat hon so thu hai la 24. Tim so thu nhat ?
trung binh cong cua hai phan so bang 2\(\frac{4}{5}\),phan so thu hai hon phan so thu nhat la \(1\frac{3}{4}\).Tim phan so thu 2
trung binh cong cua hai phan so bang 5/7.neu gap phan so thu nhat len 2 lan thi trung binh cong cua chung bang 3/4.tim phan so thu nhat?