15/24 = 5/8 ; 21/24 = 7/8 ; 54/18 = 9/3 ; 100/25 = 4/1.
15/24=5/8;21/42=1/2;54/18=3/1;100/25=4/1
15/24 = 5/8
21/42 = 7/8
54/18 = 3/1 = 3
100/25 = 4/1 = 4
Hay rut gon cac phan so sau :
9 phan 6 ; 12 phan 4 va 90 phan 70
Cac ban hay rut gon va doc giong nhu minh nhe.
cac ban ai hoc lop 4 tro minh hoi em hay viet cac nut lenh cua phan mem woord day la mon tin nhe cac ban
Rut gon phan so roi so sanh cac phan so
A,16 phan 20 va 9 phan 15
B,6 phan 8 va 3 phan 12
C, 15 phan 25 va 36 phan 45
Loi giai cu the nhe cac ban
1 . Rut gon p/s sau :
122448/132652 ( cac ban trinh bay ro cah rut gon nhe )
2 .
dua vao quy luat sau hay dien so thich hop :
A 3/ 5 , 3/4 ; 5 / 4 B 21 / 15 ; 14 / 3 ; 10 / 3 C 24 / 17 ; ? ; 34 / 36
CAM ON CAC BAN NHIEU
bai 1.A,sap xep cac phan so sau day theo thu tu tu lon den be ;5/6,13/8,8/9 ,1/3 ,3/2 ;B,tim tat ca cac phan so sau cho mau so la so co 2 chu so . Cac ban giup to nhe .
rut gon cac phan so
25 phan 40
42 phan 72
80 phan 100
Tim 3 phan so bang phan so 12/15
cac ban ghi ro lam the nao ra duoc ket qua do giup minh voi nhe
minh xin cam on cac ban da giup minh
viet cac phan so sau day thanh cac phan so co mau so la 10:
1/2 , 2/5 , 1/4 , 18/20 , 15/50 , 10/25 .
Cho cac phan so 5 / 7, 6 / 9 , 12 / 24 , 23 / 24 va 6 / 14
a Tim phan so toi gian
b Phan so nao rut gon duoc . Hay rut gon
ai nhanh nhat minh TICK cho
