Các câu hỏi tương tự
a. [0.8x(4/5x1.25)]/(0.64-1/25) + [(1.08-2/25):4/7]/[(59/9-13/4)x36/17]
b.(0.4-2/9+2/11)/(1.4-7/9+7/11) - (1/3-0.25+1/5)/(7/6-0.875+0.7)
\(B=2016:\left(\frac{0.4-\frac{2}{9}+\frac{2}{11}}{1.4-\frac{7}{9}+\frac{7}{11}}.\frac{-1\frac{1}{6}+0.875-0.7}{\frac{1}{3}-0.25+\frac{1}{5}}\right)\)
A=\(\left(\frac{0.4-\frac{2}{9}+\frac{2}{11}}{1.4-\frac{7}{9}+\frac{7}{11}}-\frac{\frac{1}{3}-0.25+\frac{1}{5}}{1\frac{1}{6}-0.875+0.7}\right):\left(1^2+2^2+3^2+...+2015^2\right)\)
Tính nhanh: \(B=\left(\frac{0.4-\frac{2}{9}+\frac{2}{11}}{1.4-\frac{7}{9}+\frac{7}{11}}-\frac{\frac{1}{3}-0.25+\frac{1}{5}}{1\frac{1}{6}-0.875+0.7}\right):\frac{2014}{2015}\)
ai đó giải giúp với làm ơn nhoa
a. [0.8x(4/5x1.25)]/(0.64-1/25) + [(1.08-2/25):4/7]/[(59/9-13/4)x36/17]
b.(0.4-2/9+2/11)/(1.4-7/9+7/11) - (1/3-0.25+1/5)/(7/6-0.875+0.7)
giúp mình với nhé
\(M=\hept{\begin{cases}0.4-\frac{2}{9}+\frac{2}{11}-\frac{1}{3}-0.25+\frac{1}{5}\\1,4-\frac{7}{9}+\frac{7}{11}-1\frac{1}{6}-0.875+0.7\end{cases}}\left\{\right\}:\frac{2012}{2013}\)
Tính giá trị của các biểu thức sau: Afrac{frac{2}{39}-frac{1}{15}-frac{2}{153}}{frac{1}{34}+frac{3}{20}-frac{3}{26}}:frac{1+frac{2}{71}-frac{5}{121}}{frac{65}{121}-frac{26}{71}-13} Bfrac{155-frac{10}{7}-frac{5}{11}+frac{5}{23}}{403-frac{27}{7}-frac{13}{11}+frac{13}{23}}+frac{frac{3}{5}+frac{3}{13}-0.9}{frac{7}{91}+0.2-frac{3}{10}} Cleft(frac{0.4-frac{2}{9}+frac{2}{11}}{1.4-frac{7}{9}+frac{7}{11}}-frac{frac{1}{3}-0.25+frac{1}{5}}{1frac{1}{6}-0.875+0.7}right):frac{2014}{2...
Đọc tiếp
Tính giá trị của các biểu thức sau: \(A=\frac{\frac{2}{39}-\frac{1}{15}-\frac{2}{153}}{\frac{1}{34}+\frac{3}{20}-\frac{3}{26}}:\frac{1+\frac{2}{71}-\frac{5}{121}}{\frac{65}{121}-\frac{26}{71}-13}\) \(B=\frac{155-\frac{10}{7}-\frac{5}{11}+\frac{5}{23}}{403-\frac{27}{7}-\frac{13}{11}+\frac{13}{23}}+\frac{\frac{3}{5}+\frac{3}{13}-0.9}{\frac{7}{91}+0.2-\frac{3}{10}}\) \(C=\left(\frac{0.4-\frac{2}{9}+\frac{2}{11}}{1.4-\frac{7}{9}+\frac{7}{11}}-\frac{\frac{1}{3}-0.25+\frac{1}{5}}{1\frac{1}{6}-0.875+0.7}\right):\frac{2014}{2015}\)
thực hiện phép tính
\(l.\dfrac{\dfrac{1}{3}+\dfrac{1}{7}-\dfrac{1}{23}}{\dfrac{2}{3}+\dfrac{2}{7}-\dfrac{2}{23}}\times\dfrac{\dfrac{1}{3}-0.25-0.2}{1\dfrac{1}{6}-0.875-0.7}\)
Tính nhanh:
A.(1/3+1/7-1/13)/(2/3+2/7-2/13)
B.(1/3-0.25+0.2)/(7/6-0.875+0.7)