1/2,2/3=1x3/2x3,2x2/3x2=3/6,4/6
4/6,3/7=4x7/6x7,3x6/7x6=28/42,18/42
1/2,2/3=1x3/2x3,2x2/3x2=3/6,4/6=7/6
7/6,3/7=7x7/6x7,7x6/3x6=49/42,42/18
Quy dong mau so cac phan so sau
a 1/ 2,2 / 3 va 3 / 7
b 5 / 6,7 / 9 va 1 /3
giai ho minh nha ai nhanh nhat minh TICK cho
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
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
quy dong mau so cac phan so
a/4/7, 3/2 va 5phan4
b/4/15, 3/5 va 2/3
quy dong mau so cac phan so
5 phan 3 va4 phan 7=
4 phan 3;1 phan 2 va 3 phan 5=
3 phan 4va9 phan 16=
5 phan 6;7 phan 8;13 phan24=
11 phan9 va 13 phan 6=
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.
1,
Tim 1 phan so biet tu so hon mau so 8 don vi va ti so cua tu so va mau so la 5/3
2,
Hay viet cac phan so co mau so la 9 va nam giua 2 phan so 6/18 va 16/27
3,
Hay viet 4 phan so khac nhau sao cho moi phan so lon hon 5/6 va be hon 6/7
Quy dong mau so cac phan so:
1\6va4\5 ; 11\49va8\7 ; 12\59va5\9 ; 5\9va7\36 ;47\100va17\25;4\9va5\8
minh can gap cac ban nho giai cho ro nhe
quy dong mau so cac phan so
4 phan 3; 1 phan 2 va 3 phan 5=
5 phan 6;7 phan 8;13 phan 24=
u so cac phan so
