簡約 1/2 (2.5*10^{-7})

解

簡約

\frac{1}{2} (2.5 \cdot 1 0^{- 7})

\frac{1}{8000000}

十進法表記

0.000000125

解答ステップ

\frac{1}{2} (2.5 \cdot 1 0^{- 7})

1 0^{- 7} = \frac{1}{10000000}

= \frac{1}{2} \cdot 2.5 \cdot \frac{1}{10000000}

2.5 \cdot \frac{1}{10000000} = \frac{2.5}{10000000}

= \frac{1}{2} \cdot \frac{2.5}{10000000}

数を割る:

\frac{2.5}{10000000} = 0.00000025

= \frac{1}{2} \cdot 0.00000025

0.00000025 = \frac{1}{4000000}

= \frac{1}{2} \cdot \frac{1}{4000000}

\frac{1}{2} \cdot \frac{1}{4000000} = \frac{1}{8000000}

= \frac{1}{8000000}