Datrys {left(61/2right)}^3-21^2/4-1

$${ \left(6 \frac{ 1 }{ 2 } \right) }^{ 3 } -2 \frac{ { 1 }^{ 2 } }{ 4 } -1$$

Enrhifo

$$\frac{2185}{8}=273.125$$

Camau Ateb

Lluosi 6 a 2 i gael 12.

$$\left(\frac{12+1}{2}\right)^{3}-2\times \frac{1^{2}}{4}-1$$

Adio 12 a 1 i gael 13.

$$\left(\frac{13}{2}\right)^{3}-2\times \frac{1^{2}}{4}-1$$

Cyfrifo \frac{13}{2} i bŵer 3 a chael \frac{2197}{8}.

$$\frac{2197}{8}-2\times \frac{1^{2}}{4}-1$$

Cyfrifo 1 i bŵer 2 a chael 1.

$$\frac{2197}{8}-2\times \frac{1}{4}-1$$

Lluosi 2 a \frac{1}{4} i gael \frac{1}{2}.

$$\frac{2197}{8}-\frac{1}{2}-1$$

Tynnu \frac{1}{2} o \frac{2197}{8} i gael \frac{2193}{8}.

$$\frac{2193}{8}-1$$

Tynnu 1 o \frac{2193}{8} i gael \frac{2185}{8}.

$$\frac{2185}{8}$$

Ffactor

$$\frac{5 \cdot 19 \cdot 23}{2 ^ {3}} = 273\frac{1}{8} = 273.125$$