[tex] \frac{2}{3} = \frac{6}{9} \\
(1)...\;\; \frac{2*4}{3} = \frac{6*4}{9} \;\;;\\
(2)...\;\; \frac{2}{2*3} = \frac{6}{2*9} \;\;;\\
(3)...\;\; \frac{2+3}{3} = \frac{6+9}{9}\;\;;\\
(4)...\;\; \frac{2}{3-2} = \frac{6}{9-6}\;\;;\\
(5)...\;\; \frac{2+3}{2-3} = \frac{6+9}{6-9} [/tex]
