1) 8 9/20*2/13 2)5 1/3*3/8 3) 10 1/2*2/7 4) 5/6*1 6/5 5) 3 1/9*3/8 6) 9 1/7*3/4 7) 10 1/5*10/17 8) 3/11*5 1/2. ПЕомогите

[latex]1)8 \frac{9}{20} * \frac{2}{13} = \frac{169*2}{20*13} = \frac{13}{10} =1.3 \\ \\ 2)5 \frac{1}{3} * \frac{3}{8} = \frac{16*3}{3*8} =2 \\ \\ 3)10 \frac{1}{2} * \frac{2}{7} = \frac{21*2}{2*7} =3 \\ \\ [/latex] [latex]4) \frac{5}{6} *1 \frac{6}{5} = \frac{5*11}{6*5} = \frac{11}{6} =1 \frac{5}{6} \\ \\ 5)3 \frac{1}{9} * \frac{3}{8} = \frac{28*3}{9*8} = \frac{7}{2*2} = \frac{7}{4} =1.75 \\ \\ 6)9 \frac{1}{7} * \frac{3}{4} = \frac{64*3}{7*4} = \frac{16*3}{7} = \frac{48}{7} =6 \frac{6}{7} \\ \\ 7)10 \frac{1}{5} * \frac{10}{17} = \frac{51*10}{5*17} =3*2=6 \\ \\ 8) \frac{3}{11} *5 \frac{1}{2} = \frac{3*11}{11*2}= \frac{3}{2} =1.5[/latex]