\(-3\dfrac{3}{4}-\dfrac{10}{25}-\dfrac{6}{12}=-\dfrac{15}{4}-\dfrac{2}{5}-\dfrac{1}{2}=\dfrac{\left(-15\right).5-2.4-10}{20}=\dfrac{-93}{20}\)
\(-3\dfrac{3}{4}-\dfrac{10}{25}-\dfrac{6}{12}\)
\(=-\dfrac{15}{4}-\dfrac{2}{5}-\dfrac{1}{2}\)
\(=\dfrac{-75-8-10}{20}\)
\(=\dfrac{-93}{20}\)
\(-3\dfrac{3}{4}-\dfrac{10}{25}-\dfrac{6}{25}=\dfrac{-15}{4}-\dfrac{16}{25}=\dfrac{-375}{100}-\dfrac{64}{100}=\dfrac{-439}{100}\)