Phan so 3/7 bang phan so nao duoi day a. 6/14 b. 15/45 c. 6/35 d.7/3
tim cac phan so bang nhautrong cac phan so day :2:5 ; 4:7; 6:15; 8:14; 16:28; 24:60;
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.
c1 : so thich hop de dien vao cho cham de 74 ... chia het cho ca 2 va 3 la
a.2
b.6
c.4
d.8
c2 : trong cac phan so duoi day phan so nao bang 2/9
a.5/18
b.6/27
c.14/24
d.10/26
c3:hinh binh hanh co dien tich la 60 cm vuong,chieu cao la 6m thi do dai day cua no la
a.5m
b.20m
c.10cm
d.10cm vuong
c4:rut gon phan so 24/36 ta duoc phan so toi gian la
a.12/18
b.8/12
c.6/9
d.2/3
mong mn giup do
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 .
Cac phan so
5 / 9 ; 15 / 45 ; 3 / 7 ; 11 / 19 ; 16 / 31
phan so nao bang phan so 1 / 3
mot phan so co hieu cua mau so va tu so la 15, khi rut gon phan so do duoc 7/10.Tim phan so do
viet cac phan so sau day thanh cac phan so co mau so chung la 10:
1/2 , 2/5 , 1/4 , 18/20 , 15/50 , 10/25 .
Viet cac phan so deu co mau so la 40 va bang cac phan so da cho
7/8=
7/5=
19/40 giu nguyen
14/10=
14/16=