quy dong cac mau so sau:
5/7 VA 4 (CO MAU SO CHUNG LA 7)
19/24 VA 7 (CO MAU SO CHUNG LA 24)
9/11 VA 5(CO MAU SO CHUNG LA 11)
4/9 VA 7/12 (CO MAU SO CHUNG LA 36)
viet cac phan so lan luot bang 7 phan 9 va 5 phan 12 va co mau so chung la 36
bai 4 ;Viet hai phan so lan luot bang :
a) 5/7 ;4 va co mau so chung la 7
b) 9/11 ;5 va co mau so chung la 33
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 ...
viet cac phan so lan luot bang 7/9 , 5/12 va co mau so chung la 36
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
A)Viet 5 phan so bé Hon 1,co Mau so la 7 va co tu so lon hon 0:
B)Viet 5 phan so lon hon 1 va co mau so la 5:
C)Viet 5 phan so bang phan so tam phan muoi hai :
D)Viet cac phan so khac 0 co tong cua tu so va mau so bang 7:
E)Hai phan so lon hon 1 co mau so bang 7 la :
G)Hai phan so bang 1 la:
H)Khoanh vao cac phan so bang ba muoi sau phan nam tu: Hai phan ba; sau phan muoi nam;tam phan muoi hai;muoi phan muoi nam
Giai ho minh bai toan nay nhe !Minh dang can bai toan nay trong ngay hom nay.
quy dong mau so cac phan so voi mau so chung nho nhat:a)1/6 va 1/9 b)3/8 va 5/12
viet cac phan so lan luot bang 13 phan 36 va 17 phan 24 co mau so chung la 72
