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Tim 1 phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi bang 1, con neu giu nguyen tu so va cong them 3 vao mau so thi ta duoc phan so moi bang 1/2
Tim 1 phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi bang 1,con neu giu nguyen tu so va cong them 3 vao mau so thi ta duoc phan so moi bang 1/2
tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi bang 1 con neu giu tu so va cong them 3 vao mau so thi ta duoc phan so moi bang 1/2
tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau thi ta duoc phan so moi bang 1 con neu giu nguyen tu so va cong them 3 vao mau so thi ta duoc phan so moi bang 1/2
CÁC BẠN GIÚP MÌNH ĐI NHA '!!!!!!!!!!!!!!!!! THANK YOU "AI LAM NGAY DUOC THI HO MINH"
tim mot phan so co tong cua tu so va mau so la 44,biet neu lay tu so cong voi 6 va giu nguyen mau so thi duoc phan so moi bang 1.
1. Tim trung binh cong cua tat ca cac so tu nhien co 4 chu so khac nhau duoc viet boi bon chu so 0;3;5;7.Trung binh cong cua tat ca cac so do la?2 .Tong cua 3 so bang 5,2. So thu nhat bang 2/3 so thu ba va so thu hai bang 50% so thu ba. Tim so thu hai?3. Tim mot phan so co mau so bang 25 , biet rang neu cong tu so voi 34 va nhan mau so voi 3 thi duoc phan so moi bang phan so da cho. Tim phan so do?4. Tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi...
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1. Tim trung binh cong cua tat ca cac so tu nhien co 4 chu so khac nhau duoc viet boi bon chu so 0;3;5;7.Trung binh cong cua tat ca cac so do la?
2 .Tong cua 3 so bang 5,2. So thu nhat bang 2/3 so thu ba va so thu hai bang 50% so thu ba. Tim so thu hai?
3. Tim mot phan so co mau so bang 25 , biet rang neu cong tu so voi 34 va nhan mau so voi 3 thi duoc phan so moi bang phan so da cho. Tim phan so do?
4. Tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi bang 1, con neu giu nguyen tu so va cong them 3 thi ta duoc phan so moi bang 1/2 .Tim phan so do?
5. Hay cho biet co tat ca bao nhieu so co 3 chu so ma tong co chu so cua moi so bang 4 . co tat ca bao nhieu so thoa man?
tim moi so sao cho khi tu so cua phan so 35/60 cong voi so do va giu nguyen mau so thi duoc phan so moi bang 2/3
tim mot so sao cho khi cong tu so cua phan so 17/39 voi so do va giu nguyen mau so thi duoc phan so moi bang 2/3
tim mot so sau cho khi cong tu so cua phan so 17/39 voi so do va giu nguyen mau so thi duoc phan so moi bang 2/3