[tex]4\frac{2}{5}*(0,3+0,9*\frac{1}{3})-1,78 = \frac{22}{5}*( \frac{3}{10}+ \frac{9}{10} *\frac{1}{3})-1,78= \frac{22}{5} *(\frac{3}{10}+ \frac{3}{10})-1,78= \frac{22}{5}*\frac{6}{10}-1,78= \frac{66}{25}-1,78= \frac{264}{100}-1,78=2,64-1,78=0,86[/tex]
[tex]2\frac{1}{3}*3,6- 3\frac{2}{3} :1\frac{2}{9} =\frac{7}{3} *\frac{36}{10} -\frac{11}{3}: \frac{11}{9}= \frac{42}{5}- \frac{11}{3} *\frac{9}{11}=\frac{42}{5}- 3=8\frac{2}{5} -3=5\frac{2}{5}[/tex]
[tex]5\frac{3}{5}(0,1+0,6* \frac{1}{2} )-1,46=\frac{28}{5} (\frac{1}{10}+ \frac{6}{10}* \frac{1}{2})-1,46= \frac{28}{5}( \frac{1}{10} +\frac{3}{10})-1,46= \frac{28}{5}* \frac{4}{10}-1,46=\frac{56}{25}-1,46=\frac{224}{100}-1,46=2,24-1,46=0,78[/tex][tex]1\frac{2}{3}*4,2- 3\frac{1}{3}: 2\frac{2}{9}= \frac{5}{3}* \frac{42}{10} =\frac{10}{3} :\frac{20}{9}=7- \frac{10}{3}* \frac{9}{20}=7-1,5=5,5[/tex]
