Сократите дроби и дробные выражения 2*3/3*7 2*7/3*2 3*7/2*9 5*3/6*10 8*12*15/9*20

[latex]1. \frac{2*3}{3*7} = \frac{2}{7} [/latex] [latex]2. \frac{2*7}{3*2} = \frac{7}{3} =2 \frac{1}{3} [/latex] [latex]3. \frac{3*7}{2*9} = \frac{7}{6} =1 \frac{1}{6} [/latex] [latex]4. \frac{5*3}{6*10} = \frac{1}{4} =0,25[/latex] [latex]5. \frac{8*12*15}{9*20} = \frac{24}{3} =8[/latex]