Datrys 2(-2/5)div(-3/10)^-1

$$2 ( \frac { - 2 } { 5 } ) \div ( \frac { - 3 } { 10 } ) ^ { - 1 }$$

Enrhifo

$$\frac{6}{25}=0.24$$

Camau Ateb

Gellir ailysgrifennu \frac{-2}{5} fel -\frac{2}{5} drwy echdynnu’r arwydd negatif.

$$\frac{2\left(-\frac{2}{5}\right)}{\left(\frac{-3}{10}\right)^{-1}}$$

Lluosi 2 a -\frac{2}{5} i gael -\frac{4}{5}.

$$\frac{-\frac{4}{5}}{\left(\frac{-3}{10}\right)^{-1}}$$

Gellir ailysgrifennu \frac{-3}{10} fel -\frac{3}{10} drwy echdynnu’r arwydd negatif.

$$\frac{-\frac{4}{5}}{\left(-\frac{3}{10}\right)^{-1}}$$

Cyfrifo -\frac{3}{10} i bŵer -1 a chael -\frac{10}{3}.

$$\frac{-\frac{4}{5}}{-\frac{10}{3}}$$

Rhannwch -\frac{4}{5} â -\frac{10}{3} drwy luosi -\frac{4}{5} â chilydd -\frac{10}{3}.

$$-\frac{4}{5}\left(-\frac{3}{10}\right)$$

Lluosi -\frac{4}{5} a -\frac{3}{10} i gael \frac{6}{25}.

$$\frac{6}{25}$$

Ffactor

$$\frac{2 \cdot 3}{5 ^ {2}} = 0.24$$