Réitigh 6.4+2.9+5.6+4.7+7+4.7+2.3+3.8+4.1+6.9+5.2=

$$6.4+2.9+5.6+4.7+7+4.7+2.3+3.8+4.1+6.9+5.2=$$

Luacháil

$$53.6$$

Céimeanna Réitigh

Suimigh 6.4 agus 2.9 chun 9.3 a fháil.

$$9.3+5.6+4.7+7+4.7+2.3+3.8+4.1+6.9+5.2$$

Suimigh 9.3 agus 5.6 chun 14.9 a fháil.

$$14.9+4.7+7+4.7+2.3+3.8+4.1+6.9+5.2$$

Suimigh 14.9 agus 4.7 chun 19.6 a fháil.

$$19.6+7+4.7+2.3+3.8+4.1+6.9+5.2$$

Suimigh 19.6 agus 7 chun 26.6 a fháil.

$$26.6+4.7+2.3+3.8+4.1+6.9+5.2$$

Suimigh 26.6 agus 4.7 chun 31.3 a fháil.

$$31.3+2.3+3.8+4.1+6.9+5.2$$

Suimigh 31.3 agus 2.3 chun 33.6 a fháil.

$$33.6+3.8+4.1+6.9+5.2$$

Suimigh 33.6 agus 3.8 chun 37.4 a fháil.

$$37.4+4.1+6.9+5.2$$

Suimigh 37.4 agus 4.1 chun 41.5 a fháil.

$$41.5+6.9+5.2$$

Suimigh 41.5 agus 6.9 chun 48.4 a fháil.

$$48.4+5.2$$

Suimigh 48.4 agus 5.2 chun 53.6 a fháil.

$$53.6$$

Fachtóirigh

$$\frac{67 \cdot 2 ^ {2}}{5} = 53\frac{3}{5} = 53.6$$