Question

ОЧЕНЬ НАДО!!! НОМЕР 338!!! ПОЖАЛУЙСТА!!!

Answer 1

1. 9+(2/7)=18/7

2. (11/4)*(9/94)=99/376

3. (5/7)*3*1/4=15/28

4. (5/3)*5*(1/4)=25/12

5. (13/3)*(1/4)*(2/7)=(13/3)*(1/2)*(1/7)=13/42

6. 2*(16/27)*(1/3)=32/81

Answer 2

1) $9\frac{3}{5} *\frac{10}{21} =\frac{48}{5} *\frac{10}{21} =\frac{3*16*5*2}{5*7*3} =\frac{16*2}{7} =\frac{32}{7} =4\frac{4}{7}$ (дальше не буду так подробно, надеюсь принцип понял(а))

2)$\frac{47}{12}* \frac{9}{94} =\frac{47*3*3}{47*2*3*4} =\frac{3}{8}$

3) $\frac{12}{7} * \frac{49}{8} -\frac{4*3*7*7}{7*4*2}  =\frac{21}{2}=10 \frac{1}{2}$

4) $\frac{32}{9} *\frac{21}{4} =\frac{8*4*3*7}{3*3*4} =\frac{56}{3} =18\frac{2}{3}$

5)$\frac{28}{15} *\frac{5}{8} *\frac{16}{7} =\frac{4*7*5*8*2}{5*3*8*7} =\frac{8}{3} =2\frac{2}{3}$

6)$\frac{9}{4} *\frac{16}{27} *\frac{13}{3} =\frac{9*4*4*13}{4*9*3*3} =\frac{13}{9}=1 \frac{4}{9}$