Các câu hỏi tương tự
Cho cac phan so 26/39 30/42 38/57 51/85 39/65 20/28; tim cac cap phan so bang nhau
tim 3 phan so:
a)bang phan so 7/9
b)bang phan so 23/37
tim mot phan so bang phan so 9/10 neu tu so cua phan so tru di 15 va giu nguyen mau so thi ta duoc phan so moi bang phan so 3/4
tim cac phan so co tu so be hon 30 va: bang phan so 5/3 va bang phan so 4/7 dang cAN GAP
tim mot phan so biet tong cua tu so va mau so cua phan so do bang 162 va biet phan so do co gia tri bang 4/5
tim phan so do
Cho phan so 3 phan 7.Neu cong them vao tu so va mau so do voi cung mot so tu nhien thi duoc mot phan so moi bang phan so 2 phan 3.Tim hai phan so do.
tim phan so bang 2/3 , biet rang tong cua tu so va mau so cua phan so do bang 25
Cho phan so 3 phan 7.Neu cong them vao tu so va mau so cua phan so do voi cung mot so tu nhien thi duoc mot phan so moi bang phan so 2 phan 3.Tim hai so do.
Tim 3 phan so bang phan so 34 / 51