quy dong mau so hai phan so 3/4 va 11/30 {voi mau so chung nho nhat} ta duoc hai phan so la ... va ...
tim 1 phan so biet tong cua tu so va mau so cua phan so do bang 198va biet neu chuyen tu mau so len tu so 26 don vi thi ta duoc phan so moi co gia tri bang 1
nguyen thi thu trang cho minh cau tra loi di
tong so dan hai xa A va B la 5857 nguoi . neu so dan o xa A tang them 31 nguoi , so dan cua xa B giam di 62 nguoi thi so dan o 2 xa bang nhau . tinh so dan o moi xa
cac ban tra loi nhanh gium mk va ghi loi giai dap so ro rang nha
viet cac phan so sau day theo thu tu tu be den lon
a ) 5/6 ; 14/21 ; 8/7 ; 51/42 ; 15/14
b) 1/2 ; 5/6 ; 4/5 ; 7/8 ; 6/7 ; 8/9
tra loi xong nho kb voi mk nha , ai nhanh mk tk
quy dong mau hai phan so 2/3va 5/12 ( chon 12 la mau so chung (MSC) de quy dong mau so hai phan so tren )
tong cua hai so la 2021 neu tang so thu nhat 12 don vi va giam di so thu hai 2 don vi thi tong moi se la bao nhieu?
ai tra loi nhanh nhat va dung nhat mk se tick dung cho
1, Quy dong mau so cac phan so 5/12,2/3 , 3/4
2,viet cac phan so lan luot bang 5/12, 7/18 va co mau so chung la 36
ai lam dung truoc minh tick cho
quy dong mau so 3 phan so 1 phan 4 ; 1 phan 2 ; va 1 phan 3
quy dong mau so cac phan so
4 phan 3; 1 phan 2 va 3 phan 5=
5 phan 6;7 phan 8;13 phan 24=
u so cac phan so