dung 9 chu so khac nhau va khac 0 viet cac phan so lan luot bang 1,2,3,4,5,6,7,8,9
Tuyển Cộng tác viên Hoc24 nhiệm kì 26 tại đây: https://forms.gle/dK3zGK3LHFrgvTkJ6
cac so thap phân co phan nguyen bang nhau, phan thap phan moi so co mot chu so khac 0 va khac nhau. hoi tich cua tat ca cac so do co phan thap gom bao nhieu chu so
Có lẽ bn nên viết tiếng việt có dấu sẽ dễ hiểu hơn đó
^&^
Cho 5 chu so TN bat ki khac nhau va khac 0. Co the viet duoc bao nhieu phan so co tu so khac mau so tu cac so da cho
tim so lon nhat viet boi cac chu so khac nhau va tich cac chu so do bang 42
hay viet phan so 31/32 thanh tong cua cac phan so co tu bang 1 va mau khac nhau
1/36 + 1/16 + 1/8 + 1/4 + 1/2 = 31/32
Tổng đó là: \(\frac{1}{1.2}+\frac{1}{2.3}+\frac{1}{3.4}+\frac{1}{4.5}+...+\frac{1}{31.32}\)
31/32 = 1/32 + 30/32
= 1/32 + 15/16
= 1/32 + 7/16 + 8/16
= 1/32 + 7/16 + 1/2
= 1/32 + 1/2 + 5/16 + 2/16
= 1/32 + 1/2 + 5/16 + 1/8
= 1/32 + 1/2 + 1/8 + 1/16 + 4/16
= 1/32 + 1/2 + 1/8 + 1/16 + 1/4
viet cac phan so lan luot bang 7 phan 9 va 5 phan 12 va co mau so chung la 36
viet so thap phan lon nhat co 5 chu so khac nhau ma tong cac chu so bang 33
phan be nhat duoc viet boi cac chu so khac nhau ma tong cac chu so cua so do bang 7 la so
tim so nho nhat duoc viet boi cac chu so khac nhau va tong cua cac chu so do bang 45
viet cac phan so sau thanh tong cac phan so sau co tu so bang 1 va mau so khac nhau:13/35;11/16;7/18;15/24
\(\frac{13}{35}=\frac{7}{35}+\frac{5}{35}+\frac{1}{35}=\frac{1}{5}+\frac{1}{7}+\frac{1}{35}\)
\(\frac{11}{16}=\frac{8}{16}+\frac{2}{16}+\frac{1}{16}=\frac{1}{2}+\frac{1}{8}+\frac{1}{16}\)
\(\frac{7}{18}=\frac{6}{18}+\frac{1}{18}=\frac{1}{3}+\frac{1}{18}\)
\(\frac{15}{24}=\frac{12}{24}+\frac{3}{24}=\frac{1}{2}+\frac{1}{8}\)