求 \( \frac{-4}{5} \times \frac{3}{7} \times \frac{15}{16} \times\left(\frac{-14}{9}\right) \)
已知
\( \frac{-4}{5} \times \frac{3}{7} \times \frac{15}{16} \times\left(\frac{-14}{9}\right) \)
要求
化简给定表达式。
解答
解决此类问题时,需要使用**BODMAS规则**。
\( \frac{-4}{5} \times \frac{3}{7} \times \frac{15}{16} \times\left(\frac{-14}{9}\right) \)
\(1=\frac{-4}{5} \times \frac{3}{7} \times \frac{15}{16} \times \left(\frac{-14}{9}\right) = \frac{-180}{560} \times \left(\frac{-14}{9}\right) = \frac{2520}{5040} = \frac{1}{2} = 0.5\)
\( = \frac{-180}{560} \times \left(\frac{-14}{9}\right) \)
\( = \frac{2520}{5040} = \frac{1}{2} = 0.5 \)
表达式的值为\( \frac{-4}{5} \times \frac{3}{7} \times \frac{15}{16} \times\left(\frac{-14}{9}\right) \) 为 0.5。