Question

а)
$frac{ {3}^{3} times {3}^{8} }{ {3}^{9} } - frac{ {5}^{7} times {11}^{7} }{ {55}^{6 } } =$
б)
$frac{21 times {21}^{7} }{ {21}^{6} } - frac{ {3}^{5} times {6}^{5} }{ {18}^{3} } =$

Answer 1

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