\(\frac{x}{4}\)- \(\frac{3}{7}\)+\(\frac{2}{5}\)=\(\frac{31}{140}\) b,\(\frac{5}{12}\) +\(\frac{5}{x}\) -\(\frac{1}{8}\) =\(\frac{1}{2}\) c, \(\frac{3}{4}\) - x +\(\frac{6}{-11}\) = \(\frac{5}{6}\) giúp dùm nha , cảm ơn mọi ngoi...
Đọc tiếp
\(\frac{x}{4}\)- \(\frac{3}{7}\)+\(\frac{2}{5}\)=\(\frac{31}{140}\) b,\(\frac{5}{12}\) +\(\frac{5}{x}\) -\(\frac{1}{8}\) =\(\frac{1}{2}\) c, \(\frac{3}{4}\) - x +\(\frac{6}{-11}\) = \(\frac{5}{6}\) giúp dùm nha , cảm ơn mọi ngoi nhiều
