Tính hợp lí (nếu có thể)
\(\frac{-4}{13}\cdot\frac{5}{17}+\frac{-12}{13}\cdot\frac{4}{17}+\frac{4}{13}\)
help me!!!!!!!!
Thực hiện phép tính :
\(\frac{-4}{13}\)\(\times\)\(\frac{5}{17}+\frac{-12}{13}\times\frac{4}{17}+\frac{4}{13}\)
tính hợp lý:
\(\frac{-4}{13}\). \(\frac{5}{17}\)+ \(\frac{-12}{13}\). \(\frac{4}{17}\)+ \(\frac{4}{13}\)
Tính bằng cách hợp lí
a)\(\frac{1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}}{1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}}:\frac{13+\frac{13}{2}+\frac{13}{3}+\frac{13}{4}}{17-\frac{17}{2}+\frac{17}{3}-\frac{17}{4}}\)
tính bằng cách hợp lí:
a) \(\frac{1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}}{1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}}:\frac{13+\frac{13}{2}+\frac{13}{3}+\frac{13}{4}}{17-\frac{17}{2}+\frac{17}{3}-\frac{17}{4}}\)
b)\(\frac{0,125-\frac{1}{5}+\frac{1}{7}}{0,375-\frac{3}{5}+\frac{3}{7}}+\frac{\frac{1}{2}+\frac{1}{3}-0,2}{\frac{3}{4}+0,5-\frac{3}{10}}\)
giải hộ mk vs nhé (giải chí tiết hộ mk nhá)
\(\frac{50-\frac{4}{13}+\frac{2}{15}-\frac{2}{17}}{100-\frac{8}{13}+\frac{4}{15}-\frac{4}{17}}\)
Thực hiện phép tính:
a) \(\frac{1}{12}+\frac{3}{15}+\frac{11}{12}+\frac{1}{71}-\frac{12}{10}\)
b) \(\frac{2}{3}-4.\left(\frac{1}{2}+\frac{3}{4}\right)\)
c) \(\frac{-4}{13}.\frac{5}{17}+\frac{-12}{13}.\frac{4}{7}+\frac{4}{13}\)
d) \(\frac{10^3+2.5+5^3}{55}\)
Tính
\(\frac{\frac{17}{24}.\frac{109}{12}-\frac{13}{4}.\frac{17}{24}}{\frac{7}{2}.\frac{85}{36}+\frac{85}{36}.\frac{11}{4}}-\frac{1}{5}\)
Tính
A= \(\frac{50-\frac{4}{13}+\frac{2}{15}-\frac{2}{17}}{100-\frac{8}{13}+\frac{4}{15}-\frac{4}{17}}\)
