Tìm số tự nhiên ngờ sao cho\(\frac{121}{27}nhÂn\frac{54}{11}< n< \frac{100}{21}:\frac{25}{126}\)
\(\frac{1}{2}:3+\frac{1}{3}:4+\frac{1}{4}:5+\frac{1}{5}:6+\frac{1}{6}:7+\frac{1}{7}:8....\frac{1}{99}+100\)
Viết đưới dạng số thập phân:
a) \(4\frac{71}{100}\) \(54\frac{6}{100}\) \(8\frac{25}{1000}\) \(19\frac{4}{1000}\)
b) \(\frac{142}{10}\) \(\frac{543}{100}\) \(\frac{7389}{1000}\) \(\frac{85}{1000}\)
c) \(\frac{2}{5}\) \(\frac{3}{6}\) \(1\frac{3}{4}\) \(\frac{5}{8}\)
(\(92-\frac{1}{9}-\frac{2}{10}-\frac{3}{11}-........-\frac{92}{100}\))\(\cdot x=\)(\(\frac{1}{45}+\frac{1}{51}+\frac{1}{55}+........+\frac{1}{500}\))
Tính : \(\left(92-\frac{1}{9}-\frac{2}{10}-\frac{3}{11}-...-\frac{92}{100}\right)\) \(\div\left(\frac{1}{45}+\frac{1}{50}+\frac{1}{55}+...+\frac{1}{500}\right)\)
Tìm x là số tự nhiên
A.\(\frac{6+x}{33}=\frac{7}{11}\)
B.\(\frac{15}{26}+\frac{x}{13}=\frac{46}{52}\)
C\(\frac{121}{27}X\frac{54}{11}< x< \frac{100}{21}:\frac{25}{126}\)
D.\(1< \frac{11}{x}< 12\)
Tính: \(S=\frac{92-\frac{1}{9}-\frac{2}{10}-\frac{3}{11}-....-\frac{90}{98}-\frac{91}{99}-\frac{92}{100}}{\frac{1}{45}+\frac{1}{50}+\frac{1}{55}+....+\frac{1}{495}+\frac{1}{500}}\)
Giúp mình nha! ^_^
200+6+\(\frac{3}{100}\) 27+\(\frac{4}{10}\)+\(\frac{6}{100}\)
Cho \(A=\frac{1}{4}.\frac{3}{6}.\frac{5}{8}....\frac{997}{100}\)
\(B=\frac{2}{5}.\frac{4}{7}.\frac{6}{9}...\frac{998}{1001}\)
So sánh A và B
