Datrys 663*10^-34*3*10^8/300*10^-9

$$663 \times { 10 }^{ -34 } \times 3 \times \frac{ { 10 }^{ 8 } }{ 300 \times { 10 }^{ -9 } }$$

Enrhifo

$$\frac{663}{10000000000000000000}=6.63 \cdot 10^{-17}$$

Camau Ateb

Cyfrifo 10 i bŵer -34 a chael \frac{1}{10000000000000000000000000000000000}.

$$663\times \frac{1}{10000000000000000000000000000000000}\times 3\times \frac{10^{8}}{300\times 10^{-9}}$$

Lluosi 663 a \frac{1}{10000000000000000000000000000000000} i gael \frac{663}{10000000000000000000000000000000000}.

$$\frac{663}{10000000000000000000000000000000000}\times 3\times \frac{10^{8}}{300\times 10^{-9}}$$

Lluosi \frac{663}{10000000000000000000000000000000000} a 3 i gael \frac{1989}{10000000000000000000000000000000000}.

$$\frac{1989}{10000000000000000000000000000000000}\times \frac{10^{8}}{300\times 10^{-9}}$$

Er mwyn rhannu pwerau sy’n rhannu’r un sail, tynnwch esbonydd yr enwadur o esbonydd y rhifiadur.

$$\frac{1989}{10000000000000000000000000000000000}\times \frac{10^{17}}{300}$$

Cyfrifo 10 i bŵer 17 a chael 100000000000000000.

$$\frac{1989}{10000000000000000000000000000000000}\times \frac{100000000000000000}{300}$$

Lleihau'r ffracsiwn \frac{100000000000000000}{300} i'r graddau lleiaf posib drwy dynnu a chanslo allan 100.

$$\frac{1989}{10000000000000000000000000000000000}\times \frac{1000000000000000}{3}$$

Lluosi \frac{1989}{10000000000000000000000000000000000} a \frac{1000000000000000}{3} i gael \frac{663}{10000000000000000000}.

$$\frac{663}{10000000000000000000}$$

Ffactor

$$\frac{3 \cdot 13 \cdot 17}{2 ^ {19} \cdot 5 ^ {19}} = 6.63 \times 10^{-17}$$