Question

номер 738 помогите пжпжпжжп. Даю 20 баллов​

Answer 1

1) $4\frac{1}{9} *0,9=\frac{37}{9} *\frac{9}{10}=37*\frac{1}{10}=\frac{37}{10}=3\frac{7}{10}$

2) $27,2*\frac{2}{17}= \frac{136}{5}*\frac{2}{17} =\frac{8}{5}*2=\frac{16}{5}= 3\frac{1}{5}$

3) $2\frac{1}{3}*1,2 =\frac{7}{3}* \frac{6}{5}= 7*\frac{2}{5}= \frac{14}{5} =2\frac{4}{5}$

4) $0,6:\frac{9}{25}= \frac{3}{5} *\frac{25}{9}= \frac{5}{3} =1\frac{5}{3}$

5) $\frac{8}{21}:0,5= \frac{8}{21}: \frac{1}{2}= \frac{8}{21}*2= \frac{16}{21}$

6) $3,5:4\frac{2}{3}= \frac{7}{2}: \frac{14}{3}= \frac{7}{2} *\frac{3}{14}= \frac{1}{2}* \frac{3}{2}= \frac{3}{4}$