Datrys 2*(175-75)*(2-025)/(175-75)+(2-025)

$$\frac { 2 \times ( 175 - 75 ) \times ( 2 - 025 ) } { ( 175 - 75 ) + ( 2 - 025 ) }$$

Enrhifo

$$\frac{200}{51}\approx 3.921568627$$

Camau Ateb

Tynnu 75 o 175 i gael 100.

$$\frac{2\times 100\left(2-0\times 25\right)}{175-75+2-0\times 25}$$

Lluosi 2 a 100 i gael 200.

$$\frac{200\left(2-0\times 25\right)}{175-75+2-0\times 25}$$

Lluosi 0 a 25 i gael 0.

$$\frac{200\left(2-0\right)}{175-75+2-0\times 25}$$

Tynnu 0 o 2 i gael 2.

$$\frac{200\times 2}{175-75+2-0\times 25}$$

Lluosi 200 a 2 i gael 400.

$$\frac{400}{175-75+2-0\times 25}$$

Tynnu 75 o 175 i gael 100.

$$\frac{400}{100+2-0\times 25}$$

Lluosi 0 a 25 i gael 0.

$$\frac{400}{100+2-0}$$

Tynnu 0 o 2 i gael 2.

$$\frac{400}{100+2}$$

Adio 100 a 2 i gael 102.

$$\frac{400}{102}$$

Lleihau'r ffracsiwn \frac{400}{102} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.

$$\frac{200}{51}$$

Ffactor

$$\frac{2 ^ {3} \cdot 5 ^ {2}}{3 \cdot 17} = 3\frac{47}{51} = 3.9215686274509802$$