Các câu hỏi tương tự
Cho phan so 27/78. Hoi phai cung them tu so va mau so bao nhieu don vi thi ta duoc phan so moi co gia tri bang 2/5?
cho phan so 17/21 . Hay tim 1 so tu nhien sao cho khi ca tu so va mau so cua phan so da cung cong voi so do thi dc phan so moi co gia tri bang 6/7
tim mot phan so bang phan so 3/4 biet rang neu lay tu so cua phan so do cong voi nam thi duoc phan so bang 4/5
tim mot so co hai chu so biet hieu cua chu so hang chuc va chu so hang don vi bang 5 va tich cua hai chu so bang 24
Tim mot so co 2 chu so, biet rang khi viet them chu so 4 vao ben trai so do ta duoc mot so gap chin lan so phai tim
Tim 1 so biet rang neu viet them chu so 0 vao ben phai so do thi so do tang len 405
tim so be nhat sao cho khi viet so do vao ben phai so 2009 thi duoc so co sau chu so chia het cho 125.
bai 2; tim x
184250 : (x nhan 134 ) = 125
so thu tu nhien nho nhat co chu so hang chuc bang1/3 chu so hang don vi la?
ai lam nhanh minh tich cho