.Buka kurung(16/81)tutup kurung. pangkat -3/4 Operasi hitung bilangan berpangkat

[tex] {( \frac{16}{81} )}^{ - \frac{3}{4} } \\ = \frac{1}{ (\frac{ {2}^{4} }{ {3}^{4} } ) ^{ \frac{3}{4} } } \\ = \frac{1}{ \frac{ {2}^{3} }{ {3}^{3} } } \\ = \frac{1}{ \frac{8}{27} } \\ = 1 \div \frac{8}{27} \\ = 1 \times \frac{27}{8} \\ = \frac{27}{8} \\ = 3 \frac{3}{8} [/tex]