Datrys [(2/5)^3]^2:(5/2)^2=

$$[ ( \frac { 2 } { 5 } ) ^ { 3 } ] ^ { 2 } : ( \frac { 5 } { 2 } ) ^ { 2 } =$$

Enrhifo

$$\frac{256}{390625}=0.00065536$$

Camau Ateb

I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch 3 a 2 i gael 6.

$$\frac{\left(\frac{2}{5}\right)^{6}}{\left(\frac{5}{2}\right)^{2}}$$

Cyfrifo \frac{2}{5} i bŵer 6 a chael \frac{64}{15625}.

$$\frac{\frac{64}{15625}}{\left(\frac{5}{2}\right)^{2}}$$

Cyfrifo \frac{5}{2} i bŵer 2 a chael \frac{25}{4}.

$$\frac{\frac{64}{15625}}{\frac{25}{4}}$$

Rhannwch \frac{64}{15625} â \frac{25}{4} drwy luosi \frac{64}{15625} â chilydd \frac{25}{4}.

$$\frac{64}{15625}\times \frac{4}{25}$$

Lluosi \frac{64}{15625} a \frac{4}{25} i gael \frac{256}{390625}.

$$\frac{256}{390625}$$

Ffactor

$$\frac{2 ^ {8}}{5 ^ {8}} = 0.00065536$$