61/2-3*-3 eching

$$6 \frac{ 1 }{ 2 } -3 \times -3$$

Baholash

$$\frac{31}{2}=15,5$$

Yechim qadamlari

12 hosil qilish uchun 6 va 2 ni ko'paytirish.

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

13 olish uchun 12 va 1'ni qo'shing.

$$\frac{13}{2}-3\left(-3\right)$$

-9 hosil qilish uchun 3 va -3 ni ko'paytirish.

$$\frac{13}{2}-\left(-9\right)$$

-9 ning teskarisi 9 ga teng.

$$\frac{13}{2}+9$$

9 ni \frac{18}{2} kasrga o‘giring.

$$\frac{13}{2}+\frac{18}{2}$$

\frac{13}{2} va \frac{18}{2} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{13+18}{2}$$

31 olish uchun 13 va 18'ni qo'shing.

$$\frac{31}{2}$$

Omil

$$\frac{31}{2} = 15\frac{1}{2} = 15,5$$