[tex]6)2\frac{1}{4}*236=\frac{9}{4}*236=\frac{9}{1}*59=531[/tex]
[tex]7)1\frac{5}{7}*3\frac{1}{2}=\frac{12}{7}*\frac{7}{2}=\frac{6}{1}*\frac{1}{1}=6[/tex]
[tex]8)3\frac{2}{7}*14=\frac{23}{7}*14=\frac{23}{1}*2=26[/tex]
[tex]9)1\frac{2}{3}*111=\frac{5}{3}*111=\frac{5}{1}*37=185[/tex]
[tex]10)3\frac{2}{3}*(2\frac{2}{3}+4\frac{2}{3})=\frac{11}{3}*6\frac{4}{3}=\frac{11}{3}*\frac{22}{3}=\frac{242}{9}=26\frac{8}{9}[/tex]
[tex]11)2\frac{2}{5}*(4\frac{1}{5}-3\frac{4}{5})=\frac{12}{5}*(\frac{21}{5}-\frac{19}{5})=\frac{12}{5}*\frac{2}{5}=\frac{24}{25}[/tex]
[tex]12)\frac{3}{7}*(\frac{10}{3}+\frac{5}{9})=\frac{3}{7}*(\frac{30}{9}+\frac{5}{9})=\frac{3}{7}*\frac{35}{9}=\frac{1}{1}*\frac{5}{3}=1\frac{2}{3}[/tex]
[tex]13)1\frac{1}{4}*(5\frac{1}{5}-2\frac{3}{4})=\frac{5}{4}*(5\frac{4}{20}-2\frac{15}{20})=\frac{5}{4}*(\frac{104}{20}-\frac{55}{20})=\frac{5}{4}*\frac{49}{20}=\frac{1}{4}*\frac{49}{4}=\frac{49}{16}=3\frac{1}{16}[/tex]
[tex]14)\frac{2}{3}*(2\frac{16}{20}+4\frac{11}{20})=\frac{2}{3}*6\frac{27}{20}=\frac{2}{3}*\frac{147}{20}=\frac{1}{1}*\frac{49}{10}=4\frac{9}{10}[/tex]
[tex]15)1\frac{1}{3}*(16+17)=\frac{4}{3}*33=4*11=44[/tex]
