Question

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

Answer 1

$1)8 frac{9}{20} * frac{2}{13} = frac{169*2}{20*13} = frac{13}{10} =1.3 \ \ 2)5 frac{1}{3} * frac{3}{8} = frac{16*3}{3*8} =2 \ \ 3)10 frac{1}{2} * frac{2}{7} = frac{21*2}{2*7} =3$

$4) frac{5}{6} *1 frac{6}{5} = frac{5*11}{6*5} = frac{11}{6} =1 frac{5}{6} \ \ 5)3 frac{1}{9} * frac{3}{8} = frac{28*3}{9*8} = frac{7}{2*2} = frac{7}{4} =1.75 \ \ 6)9 frac{1}{7} * frac{3}{4} = frac{64*3}{7*4} = frac{16*3}{7} = frac{48}{7} =6 frac{6}{7} \ \ 7)10 frac{1}{5} * frac{10}{17} = frac{51*10}{5*17} =3*2=6 \ \ 8) frac{3}{11} *5 frac{1}{2} = frac{3*11}{11*2}= frac{3}{2} =1.5$