Datrys (1.3*7+12+10+3.7*6+3.3*6)div30=

$$(1.3 \times 7+12+10+3.7 \times 6+3.3 \times 6) \div 30=$$

Enrhifo

$$\frac{731}{300}\approx 2.436666667$$

Camau Ateb

Lluosi 1.3 a 7 i gael 9.1.

$$\frac{9.1+12+10+3.7\times 6+3.3\times 6}{30}$$

Adio 9.1 a 12 i gael 21.1.

$$\frac{21.1+10+3.7\times 6+3.3\times 6}{30}$$

Adio 21.1 a 10 i gael 31.1.

$$\frac{31.1+3.7\times 6+3.3\times 6}{30}$$

Lluosi 3.7 a 6 i gael 22.2.

$$\frac{31.1+22.2+3.3\times 6}{30}$$

Adio 31.1 a 22.2 i gael 53.3.

$$\frac{53.3+3.3\times 6}{30}$$

Lluosi 3.3 a 6 i gael 19.8.

$$\frac{53.3+19.8}{30}$$

Adio 53.3 a 19.8 i gael 73.1.

$$\frac{73.1}{30}$$

Ehangu \frac{73.1}{30} drwy luosi'r rhifiadur a'r enwadur gyda 10.

$$\frac{731}{300}$$

Ffactor

$$\frac{17 \cdot 43}{3 \cdot 2 ^ {2} \cdot 5 ^ {2}} = 2\frac{131}{300} = 2.4366666666666665$$