Các câu hỏi tương tự
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 mot phan so,biet rang neu them 2 vao tu so va giu nguyen mau so thi duoc phan so co gia tri bang 1;neu them 3vao mau so va giu nguyen tu so thi douc phan so co gia tri bang 1/2?
cho phan so a/b co gia tri=4/5 neu cong them 33 vao tu va giu nguyen mau so thi duoc phan so=35/41 tim a/b
cho phan so 25 phan 37 hay tim so tu nhien a sao cho dem mau so cua phan so da cho tru di a va giu nguyen tu so thi duoc phan so moi co gia tri 5 phan 6
Cho phan so 25/37. Hay tim so a sao cho dem mau so da cho tru di a va giu nguyen tu so thi duoc phan so moi co gia tri la 5/6.
Tra loi nhanh duoc nhieu likeeeeeee...
Cho phan so 25/39.Hay tim mot so sao cho khi lay mau so cua phan so do da cho tru di s do va giu nguyen tu so thi ta duoc phan so moi co gia tri bang 5/7
cho phan so 25/35 .hay tim so tu nhien c sao cho dem mau so cua phan so da cho tru di c va giu nguyen tu so ta duoc phan so moi co gia tri 5/6
cho phan so 61/111 tim so tu nhien n biet rang neu cung them n vao tu so va mau so thi duoc phan so co gia tri 7/12
cho phan so 61/111 tim so tu nhien n biet rang neu cung them n vao tu so va mau so thi duoc phan so co gia tri 7/12
giai giup minh cam on nhieu\
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