4/6=2/3; 12/8=3/2; 15/25=3/5; 11/22=1/2;36/10=18/5; 75/36=25/12; 5/10=1/2; 12/36=1/3; 9/12=3/4;75/300=1/4; 15/35=3/7; 4/100=1/25
Rút gọn phân số sau
a.5/25;75/100;64/720;16/1000 b.4/6;12/8;15/25;11/22 c.5/10;12/36;9/72;75/300 d.14/28;25/50;48/30;81/54.
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.
rut gon cac phan so
25 phan 40
42 phan 72
80 phan 100
1.Rut gon cac phan so sau: 15/24 ; 21/42 ; 54/18 ; 100/25 . (day la toan lop 4 cac ban a, lam nhanh cho minh cac ban nhe)
Rut gon cac phan so sau:
78/84=
55/99=
100/175=
204/132=
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
rut gon cac phan so
18 phan30=
Rut gon cac phan so sau:
15151515/49494949 ;128128128/256256256
32/100=
RUT GON PHAN SO SAU
