Question

Сократите дробь
$frac{21^{7} }{9^{2}* 49^{3} }$

Answer 1

21⁷/(9²*49³)=((7*3)⁷)/((3²)²*(7²)³)=(7⁷*3⁷)/(3⁴*7⁶)=7*3³=7*27=189