化简 (16/5)/((-12/25))

解答

化简

\frac{\frac{16}{5}}{( - \frac{12}{25} )}

- \frac{20}{3}

十进制

- 6.66666 \dots

求解步骤

\frac{\frac{16}{5}}{- \frac{12}{25}}

使用分式法则:

\frac{a}{- b} = - \frac{a}{b}

= - \frac{\frac{16}{5}}{\frac{12}{25}}

使用分式法则:

\frac{\frac{a}{b}}{\frac{c}{d}} = \frac{a \cdot d}{b \cdot c}

\frac{\frac{16}{5}}{\frac{12}{25}} = \frac{16 \cdot 25}{5 \cdot 12}

= - \frac{16 \cdot 25}{5 \cdot 12}

消掉

- \frac{16 \cdot 25}{5 \cdot 12} : - \frac{20}{3}

= - \frac{20}{3}

f a c t or 3 x^{2} - 9 x + 6

13.48 x - 200 < 256.12

f a c t or \frac{2 x + 14}{( x + 4 ) ( x + 6 )}

3.2 + 0.3 x = 0.2 x + 1.4

∣ t - 6 ∣ = 0