Các câu hỏi tương tự
cho phan so m/n co gia tri bang 6/7 . Neu giam tu so 12 don vi thi duoc phan so moi co gia tri bang 36/49 . Tim m/n
Cho phan so a/b co gia tri bang 3/4 neu giam mau so di 12 don vi va giu nguyen tu so thi duoc phan so moi co gia tri bang 6/7 tim gia tri cua phan so a/b
cho a/b bang 4/5 neu cong them 33 vao tu so va giu nguyen mau son thi duoc phan so moi la 25/41
ai nhanh minh tick
minh can gap chieu nay nop roi xin cac ban giup minh
tim 1 phan so biet rang phan so do co gia tri bang 36/45va neu chuyen 7 don vi tu mau so len tu so thi ta duoc phan so moi co gia tri bang 1
tim mot phan so biet phan so do co gia tri bang 36/45 va biet neu chuyen 7 don vi tu mau so len tu so thi duoc phan so moi co gia tri bang 1
tim mot phan so biet neu chuyen 1 don vi tu mau so len tu so thi ta duoc phan so co gi tri bang 1 . con neu chuyen 7 don vi tu tu so xuong mau so thi ta duoc phan so moi co gia tri bang 2/3 . Tim phan so do.
cho phan so a/b co gia tri = 3/7 va neu them vao tu 60 don vi thi duoc 1 phan so moi co gia tri = 3/2 tim phan so a/b.
tim mot phan so biet neu them 12 don vi vao tu thi duoc phan so moi co gia tri bang 1 va biet phan so do co gia tri bang 9/11
tim mot phan so neu them 12 don vi vao tu so thi duoc phan so moi co gia tri bang 1 biet phan so do co gia tri la 9/11
tim mot phan so co gia tri bang 36/45.biet rang neu chuyen 7 don vi tu mau so len tu so ta se duoc mot phan so moi co gia tri bang 1.