Datrys (4^2/5)*(4^-3/5)+(2^2/5^2)

$$( \frac{ { 4 }^{ 2 } }{ 5 } ) \times ( \frac{ { 4 }^{ -3 } }{ 5 } )+( \frac{ { 2 }^{ 2 } }{ { 5 }^{ 2 } } )$$

Enrhifo

$$\frac{17}{100}=0.17$$

Camau Ateb

Cyfrifo 4 i bŵer 2 a chael 16.

$$\frac{16}{5}\times \frac{4^{-3}}{5}+\frac{2^{2}}{5^{2}}$$

Cyfrifo 4 i bŵer -3 a chael \frac{1}{64}.

$$\frac{16}{5}\times \frac{\frac{1}{64}}{5}+\frac{2^{2}}{5^{2}}$$

Mynegwch \frac{\frac{1}{64}}{5} fel ffracsiwn unigol.

$$\frac{16}{5}\times \frac{1}{64\times 5}+\frac{2^{2}}{5^{2}}$$

Lluosi 64 a 5 i gael 320.

$$\frac{16}{5}\times \frac{1}{320}+\frac{2^{2}}{5^{2}}$$

Lluosi \frac{16}{5} a \frac{1}{320} i gael \frac{1}{100}.

$$\frac{1}{100}+\frac{2^{2}}{5^{2}}$$

Cyfrifo 2 i bŵer 2 a chael 4.

$$\frac{1}{100}+\frac{4}{5^{2}}$$

Cyfrifo 5 i bŵer 2 a chael 25.

$$\frac{1}{100}+\frac{4}{25}$$

Adio \frac{1}{100} a \frac{4}{25} i gael \frac{17}{100}.

$$\frac{17}{100}$$

Ffactor

$$\frac{17}{2 ^ {2} \cdot 5 ^ {2}} = 0.17$$