5*81/2+1 eching

$$5 \cdot 8 \frac { 1 } { 2 } + 1$$

Baholash

$$\frac{87}{2}=43,5$$

Yechim qadamlari

16 hosil qilish uchun 8 va 2 ni ko'paytirish.

$$5\times \frac{16+1}{2}+1$$

17 olish uchun 16 va 1'ni qo'shing.

$$5\times \frac{17}{2}+1$$

5\times \frac{17}{2} ni yagona kasrga aylantiring.

$$\frac{5\times 17}{2}+1$$

85 hosil qilish uchun 5 va 17 ni ko'paytirish.

$$\frac{85}{2}+1$$

1 ni \frac{2}{2} kasrga o‘giring.

$$\frac{85}{2}+\frac{2}{2}$$

\frac{85}{2} va \frac{2}{2} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{85+2}{2}$$

87 olish uchun 85 va 2'ni qo'shing.

$$\frac{87}{2}$$

Omil

$$\frac{3 \cdot 29}{2} = 43\frac{1}{2} = 43,5$$