viet 5 phan so bang 1 co tu so lan luot la 7,9,10,12,15? dang can gap
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.
A LÀ 1/7,2/7,3/7,4/7,5/7
B LÀ 10/5,9/5,8/5,7/5,6/5
C LÀ 2/5,16/20,24/30,32/40,40/50
D LÀ 1/6,2/5,3/4,2/5/1/6
Ch0 em lam toan va tiêng viêt
viet 5 phan so co tu so lan luot la 7, 9, 10, 12, 15?
viet cac phan so lan luot bang 7 phan 9 va 5 phan 12 va co mau so chung la 36
tim cac phan so co tu so be hon 30 va: bang phan so 5/3 va bang phan so 4/7 dang cAN GAP
viet so tu nhien 13 thanh cac phan so co mau so lan luot la : 3; 5 ; 10 ; 17 .
\(\dfrac{13}{5};\dfrac{13}{3};\dfrac{13}{10};\dfrac{13}{17}\)
\(\dfrac{39}{3};\dfrac{65}{5};\dfrac{130}{10};\dfrac{221}{17}\)
viet phan so 3/35 duoi dang tongcac phan so co tu bang 1 va mau so khac nhau. MINH DANG RAT GAP
viet cac phan so lan luot bang 7/9 , 5/12 va co mau so chung la 36
tim so tu nhien co 5 chu so ,biet rang neu viet them chu so 7 dang truoc so do thi duoc so moi gap 5 lan ,so co duoc bang cach viet them chu so 7 vao dang sau so do
Ta gọi số cần tìm là abcd
Ta có : abcd . 5 = 7abcd
7abcd - abcd= (5 - 1). abcd
7000 = 4 . abcd
=> abcd = 7000 : 4 =1750
Gọi số cần tìm là :abcde
Ta có: 7abcde=abcde.5
=>7abcde-abcde= abcde.(5-1)
=>7abcde- abcde=abcde.4
=>700000=abcde.4
=>abcde=700000:4
=>abcde=175000
viet cac phan so lan luot bang 13 phan 36 va 17 phan 24 co mau so chung la 72