Tìm x a. x + 3 / 4 = 5 / 3 b. x - 1 / 6 = 5 /12

* Hướng dẫn giải

$$\begin{gathered} \mathrm{a}. \mathrm{x}+\frac{3}{4}=\frac{5}{3} \\ \mathrm{x} = \frac{5}{3}-\frac{3}{4} \\ \mathrm{x}=\frac{11}{12} \\ \mathrm{b}. \mathrm{x}-\frac{1}{6}=\frac{5}{12} \\ \mathrm{x}=\frac{5}{12}+\frac{1}{6} \\ \mathrm{x}=\frac{7}{12} \end{gathered}$$