[tex]( {( - 2)}^{ - 2} + {( - 1)}^{3} + 1.25) \div \sqrt{ \frac{1}{9} \div \frac{1}{12} } \\ ( \frac{1}{4} - 1 + \frac{125}{100} ) \div \sqrt{ \frac{1}{9} \times \frac{12}{1} } \\ ( \frac{1 - 4}{4} + \frac{5}{4} ) \div \sqrt{ \frac{12}{9} } \\ ( \frac{ - 3 + 5}{4} ) \div \frac{2 \sqrt{3} }{3} \\ \frac{2}{5} \times \frac{3}{2 \sqrt{3} } = \frac{1}{5} \times \frac{3 \sqrt{3} }{3} = \frac{ \sqrt{3} }{5} [/tex]
