Datrys ((2*3/9div3)^-2/(frac{9{4})^2*(2/5)^-1})^-1

$$( \frac { ( 2 \times \frac { 3 } { 9 } \div 3 ) ^ { - 2 } } { ( \frac { 9 } { 4 } ) ^ { 2 } \times ( \frac { 2 } { 5 } ) ^ { - 1 } } ) ^ { - 1 }$$

Enrhifo

$$\frac{5}{8}=0.625$$

Camau Ateb

Lleihau'r ffracsiwn \frac{3}{9} i'r graddau lleiaf posib drwy dynnu a chanslo allan 3.

$$\left(\frac{\left(\frac{2\times \frac{1}{3}}{3}\right)^{-2}}{\left(\frac{9}{4}\right)^{2}\times \left(\frac{2}{5}\right)^{-1}}\right)^{-1}$$

Lluosi 2 a \frac{1}{3} i gael \frac{2}{3}.

$$\left(\frac{\left(\frac{\frac{2}{3}}{3}\right)^{-2}}{\left(\frac{9}{4}\right)^{2}\times \left(\frac{2}{5}\right)^{-1}}\right)^{-1}$$

Mynegwch \frac{\frac{2}{3}}{3} fel ffracsiwn unigol.

$$\left(\frac{\left(\frac{2}{3\times 3}\right)^{-2}}{\left(\frac{9}{4}\right)^{2}\times \left(\frac{2}{5}\right)^{-1}}\right)^{-1}$$

Lluosi 3 a 3 i gael 9.

$$\left(\frac{\left(\frac{2}{9}\right)^{-2}}{\left(\frac{9}{4}\right)^{2}\times \left(\frac{2}{5}\right)^{-1}}\right)^{-1}$$

Cyfrifo \frac{2}{9} i bŵer -2 a chael \frac{81}{4}.

$$\left(\frac{\frac{81}{4}}{\left(\frac{9}{4}\right)^{2}\times \left(\frac{2}{5}\right)^{-1}}\right)^{-1}$$

Cyfrifo \frac{9}{4} i bŵer 2 a chael \frac{81}{16}.

$$\left(\frac{\frac{81}{4}}{\frac{81}{16}\times \left(\frac{2}{5}\right)^{-1}}\right)^{-1}$$

Cyfrifo \frac{2}{5} i bŵer -1 a chael \frac{5}{2}.

$$\left(\frac{\frac{81}{4}}{\frac{81}{16}\times \frac{5}{2}}\right)^{-1}$$

Lluosi \frac{81}{16} a \frac{5}{2} i gael \frac{405}{32}.

$$\left(\frac{\frac{81}{4}}{\frac{405}{32}}\right)^{-1}$$

Rhannwch \frac{81}{4} â \frac{405}{32} drwy luosi \frac{81}{4} â chilydd \frac{405}{32}.

$$\left(\frac{81}{4}\times \frac{32}{405}\right)^{-1}$$

Lluosi \frac{81}{4} a \frac{32}{405} i gael \frac{8}{5}.

$$\left(\frac{8}{5}\right)^{-1}$$

Cyfrifo \frac{8}{5} i bŵer -1 a chael \frac{5}{8}.

$$\frac{5}{8}$$

Ffactor

$$\frac{5}{2 ^ {3}} = 0.625$$