viet 1/6 thanh tong cua 2 phan so co tu bang 1, mau duong va khac nhau
hay viet phan so 31/32 thanh tong cua cac phan so co tu bang 1 va mau khac nhau
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
hay viet phan so 1/2 thanh tong cua 3 phan so co tu so la 1 va mau so khac nhau
hay viet phan so 1/2 thanh tong cua 3 phan so co tu so la1 va mau so khac nhau
viet phan so 5/21 thanh tong cua 3 so co tu la 1 va mau khac nhau
viet phan so \(\frac{1}{2014}\)thanh tong cua 3 phan so co tu so bang 1 , mau so khac nhau
\(\frac{1}{2014}=\frac{1}{4028}+\frac{1}{12084}+\frac{1}{6042}\)
viet phan so \(\frac{1}{2014}\) thanh tong cua 3 phan so co tu bang 1, mau so khac nhau
phan so duong thoi gian co mau khac 1 biet rang tong cua tu va mau bang 27
phan so duong toi gian co mau khac 1 , biet rang tong cua tu va mau bang 27,va no co the viet duoc duoi dang stp vo han tuan hoan . co bao nhieu phan so thoa man
Cho biết đáp án thôi cũng được
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
\(\frac{13}{35}=\frac{7}{35}+\frac{5}{35}+\frac{1}{35}=\frac{1}{5}+\frac{1}{7}+\frac{1}{35}\)
\(\frac{11}{16}=\frac{8}{16}+\frac{2}{16}+\frac{1}{16}=\frac{1}{2}+\frac{1}{8}+\frac{1}{16}\)
\(\frac{7}{18}=\frac{6}{18}+\frac{1}{18}=\frac{1}{3}+\frac{1}{18}\)
\(\frac{15}{24}=\frac{12}{24}+\frac{3}{24}=\frac{1}{2}+\frac{1}{8}\)