Các câu hỏi tương tự
1,Tính nhanh
a,3x\(\left(\frac{1}{7}+\frac{1}{3}-\frac{3}{14}\right):\frac{11}{14}\)
b,\(\left(\frac{21}{8}+\frac{1}{2}\right):\frac{5}{6}\)
3,Tìm x,biết
a,\(\frac{1}{3}+\frac{1}{6}+\frac{1}{10}+......+\frac{2}{x\cdot\left(x+1\right)}=\frac{2016}{2018}\)
b,720:\(720:[41-\left(2\cdot x-5\right)]=120\)
\(\frac{4}{3}\cdot\frac{9}{8}\cdot......\cdot\frac{100}{99}-\frac{9}{11}\)* = dấu nhân
Tính
\(\left(\frac{1}{3}+\frac{5}{6}\right)\cdot11-7\)
\(\frac{-5}{11}\cdot\frac{7}{15}\cdot\frac{11}{-5}\cdot\left(-30\right)\)
\(\left(6\frac{3}{5}-8\cdot0,125+\frac{2}{15}\cdot0,3\right)\cdot\frac{3}{14}\)
T = \(\left(1-\frac{1}{4}\right)\cdot\left(1-\frac{1}{9}\right)\cdot\left(1-\frac{1}{16}\right)\cdot........\cdot\left(1-\frac{1}{576}\right)\cdot\left(1-\frac{1}{625}\right)\)
T = ?
\(\left(19\frac{3}{8}-5\frac{1}{9}\right)-\left(11\frac{3}{8}-3\frac{1}{9}\right)=\)
Tính T biết: \(T=\left(1-\frac{1}{4}\right)\cdot\left(1-\frac{1}{9}\right)\cdot\left(1-\frac{1}{16}\right)\cdot...\cdot\left(1-\frac{1}{576}\right)\cdot\left(1-\frac{1}{625}\right)\)
a)\(\frac{11}{9}+\frac{7}{6}\cdot\left(2-\frac{1}{3}\right)\)
b)\(1\frac{1}{21}:\left(15,75-15\frac{1}{4}\right)+2\frac{1}{12}:\left(7\frac{3}{4}-7,25\right)\)
bài 1
\(\frac{18}{11}+\left(\frac{7}{4}-\frac{3}{5}\right):\frac{1}{2}\)
\(\frac{8}{5}-\frac{1}{2}:\frac{1}{4}\cdot\left(\frac{3}{7}+\frac{1}{4}\right)\)
\(\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+\frac{1}{30}+\frac{1}{42}\)