muon quuy dong mau so va hai phan so 5/9 va 7/36 ta co mau so chung no nht la
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)
5/7 va 28/7
19/24 va 168/24
9/11 va 55/11
16/36 va 21/36
k di
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 ...
\(\frac{45}{60}\)va \(\frac{22}{60}\)
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.
A LÀ 1/7,2/7,3/7,4/7,5/7
B LÀ 10/5,9/5,8/5,7/5,6/5
C LÀ 2/5,16/20,24/30,32/40,40/50
D LÀ 1/6,2/5,3/4,2/5/1/6
Ch0 em lam toan va tiêng viêt
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