15151515/49494949 = 15/49
128128128/256256256 = 1/2
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Các câu hỏi tương tự
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.
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=
Tong TS va MS cua 1 phan so =88 . Sau khi rut gon ta duoc phan so 5/6 . Tim phan so ban dau ?
Cac bn giup Mk voi mk can gap
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
25 phan 40
42 phan 72
80 phan 100
Rut gon cac phan so sau:
78/84=
55/99=
100/175=
204/132=
rut gon cac phan so: 4/6;12/8;15/25;11/22;36/10;75/36;5/10;12/36;9/12;75/300;15/35;4/100
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