Các câu hỏi tương tự
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 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
tim 1 phan so biet neu giu nguyen mau so cong tu so voi 4 thi duoc phan so moi bang 1 neu giu nguyen tu so cong mau so voi 1 thi duoc phan so moi bang 1/2
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 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
cho phan so 7/9.Tim 1 so sao cho khi tu so cua phan so da cho tru di so do va giu nguyen mau so thi duoc phan so moi bang 2/3
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