Question

(1/2+2/3)÷5/6-12×(1/2-2/3) решите

Answer 1

($\frac{1}{2}$+$\frac{2}{3}$)÷$\frac{5}{6}$-12×($\frac{1}{2}$ - $\frac{2}{3}$) = ($\frac{3}{6}$ + $\frac{4}{6}$)÷$\frac{5}{6}$-12($\frac{3}{6}$ - $\frac{4}{6}$) = $\frac{7}{6}$ ÷ $\frac{5}{6}$ - 12×-$\frac{1}{6}$=$\frac{7}{5}$--$\frac{12}{6}$=1$\frac{2}{5}$+2=3$\frac{2}{5}$