Datrys 4pi10^-72/2pi50

$$\frac{ 4 \pi { 10 }^{ -7 } 2 }{ 2 \pi 50 }$$

Enrhifo

$$\frac{1}{125000000}=8 \cdot 10^{-9}$$

Camau Ateb

Canslo 2\times 2\pi yn y rhifiadur a'r enwadur.

$$\frac{2\times 10^{-7}}{25}$$

Cyfrifo 10 i bŵer -7 a chael \frac{1}{10000000}.

$$\frac{2\times \frac{1}{10000000}}{25}$$

Lluosi 2 a \frac{1}{10000000} i gael \frac{1}{5000000}.

$$\frac{\frac{1}{5000000}}{25}$$

Mynegwch \frac{\frac{1}{5000000}}{25} fel ffracsiwn unigol.

$$\frac{1}{5000000\times 25}$$

Lluosi 5000000 a 25 i gael 125000000.

$$\frac{1}{125000000}$$

Ffactor

$$\frac{1}{2 ^ {6} \cdot 5 ^ {9}} = 8 \times 10^{-9}$$