Racionális számok szorzása

 $\frac{9}{2}\ \cdot\ \frac{4}{9}=$  

(a)  

 $\frac{2}{9}\ \cdot\ \frac{4}{3}=$  

(a)  

 $\left(-\frac{2}{3}\right)\ \cdot\ \frac{3}{4}=$  

(a)  

 $\frac{2}{3}\ \cdot\ 1\frac{3}{4}=$  

(a)  

 $\frac{15}{32}\ \cdot\ \frac{16}{24}=$  

(a)  

 $\frac{12}{11}\ \cdot\ \frac{11}{48}\ =$  

(a)  

 $\left(-\frac{17}{45}\right)\ \cdot\frac{45}{17}\ =$  

(a)  

 $\frac{5}{6}\ \cdot\ \left(-\frac{2}{7}\right)\ =$  

(a)  

 $\frac{8}{15}\ \cdot\ 5\ =$  

(a)  

 $\left(-4\right)\ \cdot\ \frac{2}{5}=$  

(a)