Các câu hỏi tương tự
cho phan so 27/44. hoi phai them so tu nhien nao vao tu so va giu nguyen mau so de duoc phan so moi bang 3/4
cho ps a\b rut gon 3\5 neu them 6 vao mau giu nguyen tu ta duoc 1 ps moi rut gon =2\3 tim ps a\b
cho mot ps co tong cua tu va mau la 4013 va mau hon tu la 1.Hay tim ps do ..Neu cong them 4455332 vao tu thi phai them vao mau bao nhieu de duoc gia tri ps khong doi.
tim 1 ps biet rang neu cong them 4 vao ts va giu nguyen ms thi ta duoc ps moi = 1 con neu giu nguyen ts va cong them 3 vao ms thi ta duoc ps moi = 1/2 ps do la
phai them vao tu so va bot di o mau so cua phan so 57634/85357 cung mot so nao de sau khi rut gon thi duoc phan so la 7/6
cho phan so 2/5 hoi phai cong them bao nhieu vao tu so va mau so cung mot so tu nhien nao de duoc phan so moi =4/5
tim mot phan so sao cho neu them 4 vao tu so va giu nguyen mau so ti ta duoc phan so bang 1neu giu nguyen tu sova them 3 vao mau so ta duoc phan so
Xem chi tiết
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