Răspuns:
[tex]\frac{5^{4}7^{3} 11^{4} }{5^{6}7 11^{3} } =\frac{7^{2} 11 }{5^{2} }=\frac{49*11}{25}=\frac{539}{25}\\\\ \\\frac{3a+6b}{5a+10b}=\frac{3(a+2b)}{5(a+2b)}=\frac{3}{5}\\\\ \\\frac{9a+3}{12a+4}=\frac{3(3a+1)}{4(3a+1)}=\frac{3}{4}[/tex]
Explicație pas cu pas:
