Các câu hỏi tương tự
\(\left(\frac{3x}{7}+1\right)\div\left(-4\right)=\frac{-1}{28}\)
Tìm x, biết:
\(\frac{11}{4}\div\frac{3}{2}\div\left|4x-\frac{1}{3}\right|=\frac{7}{2}\)
\(\left|x-1\right|=3x+2\)
Thực hiện phép tính (hợp lí nếu có thể):1,frac{-1}{3}-frac{-3}{5}-frac{1}{6}+frac{1}{43}-frac{-3}{7}+frac{-1}{2}-frac{1}{35}
2,left(-frac{1}{3}+frac{7}{13}right)-left(frac{-16}{24}+frac{6}{26}+frac{9}{13}right)3,frac{-7}{3}-left[frac{2}{5}-left(frac{1}{3}+frac{-5}{25}right)right]
4,left(2frac{1}{4}-3frac{1}{5}right)-left[frac{-3}{4}+left(frac{4}{5}-2019right)right]
Đọc tiếp
Thực hiện phép tính (hợp lí nếu có thể):
\(1,\frac{-1}{3}-\frac{-3}{5}-\frac{1}{6}+\frac{1}{43}-\frac{-3}{7}+\frac{-1}{2}-\frac{1}{35}\\ \\ 2,\left(-\frac{1}{3}+\frac{7}{13}\right)-\left(\frac{-16}{24}+\frac{6}{26}+\frac{9}{13}\right)\)\(3,\frac{-7}{3}-\left[\frac{2}{5}-\left(\frac{1}{3}+\frac{-5}{25}\right)\right]\\ 4,\left(2\frac{1}{4}-3\frac{1}{5}\right)-\left[\frac{-3}{4}+\left(\frac{4}{5}-2019\right)\right]\)
\(\left(2\frac{1}{3}+3,5\right)\div\left(-4\frac{1}{6}+3\frac{1}{7}\right)+75\%\)\(\left(-6\frac{3}{5}\div6-8\times12,5\%-\frac{2}{15}\div0,3\right)\times\left(-0,5\right)+1\)\(\left(2\frac{1}{3}+3\frac{1}{2}\right)\div\left(-4\frac{1}{6}+3\frac{1}{7}\right)+2\frac{15}{43}\)
\(S=\left(\frac{1}{2}-1\right)\div\left(\frac{1}{3}-1\right)\div\left(\frac{1}{4}-1\right)\div...\div\left(\frac{1}{50}-1\right)\)
vậy S bằng bao nhiêu ?
tìm x biết\(\left(\frac{3\chi}{7}+1\right)\div\left(-4\right)=\frac{-1}{7}\)
\(\left(0,66-0,012\div0,2\right)\div\left(1-1\frac{4}{7}\times0,4\right)=2\frac{9}{13}\times x\div\left(3,125-5,6\div2\frac{2}{3}\right)\)
Cho mình xin cả cách làm nữa
thực hiện phép tính hợp lí nếu có thể:
a,\(\left(2\frac{1}{3}+3,5\right)\div\left(-4\frac{1}{6}+3\frac{1}{7}\right)+75\%\)
b,\(\left(2\frac{1}{3}+3\frac{1}{2}\right)\div\left(-4\frac{1}{6}+3\frac{1}{7}\right)+2\frac{15}{43}\)
\(x-40\%\times x=3,6\)
\(3\frac{2}{7}\times x-\frac{1}{3}=-2\frac{3}{4}\)
\(-\frac{4}{7}+\frac{5}{7}\div x=\frac{1}{6}\)
\(\left(\frac{3x}{7}+1\right)\div\left(-4\right)=-\frac{1}{28}\)
\(-\frac{3}{x-2}=\frac{4}{-20}\)