1/2=5/10;2/5=4/10;1/4=?;18/20=9/10;15/50=3/10;10/25=4/10
\(\frac{5}{10},\frac{4}{10},\frac{25}{100},\frac{90}{100},\frac{30}{100},\frac{40}{100}\)
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 .
hay viet 5 phan 8 ; 25 phan 30 va 2 thanh cac phan so co mau so chung la 240
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
viet so tu nhien 13 thanh cac phan so co mau so lan luot la : 3; 5 ; 10 ; 17 .
cho cac phan so 17 phan 20,23 phan 30 37 phan 40 va 53 phan 60 hay viet cac phan so do thanh cac phan so co mau so la 120
1) Mot hinh chu nhat co chu vi la 320 cm . Biet neu viet them chu so 1 vao ben trai so do chieu rong thi duoc so do chieu dai . Tim dien tich cua hinh chu nhat ?
2) Viet cac phan so sau day thanh tong 3 phan so sao cho moi phan so co tu so la 1 , mau so khac nhau
a) 11/26 ; b) 7/8
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.
viet pahn so 15/16 thanh tong cac phan so co tu so la 1 mau so khac nhau
SAI
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
