30+(10-9)div(2*10-9-3)*5 eching

$$30+(10-9) \div (2 \times 10-9-3) \times 5$$

Baholash

$$\frac{245}{8}=30,625$$

Yechim qadamlari

1 olish uchun 10 dan 9 ni ayirish.

$$30+\frac{1}{2\times 10-9-3}\times 5$$

20 hosil qilish uchun 2 va 10 ni ko'paytirish.

$$30+\frac{1}{20-9-3}\times 5$$

11 olish uchun 20 dan 9 ni ayirish.

$$30+\frac{1}{11-3}\times 5$$

8 olish uchun 11 dan 3 ni ayirish.

$$30+\frac{1}{8}\times 5$$

\frac{5}{8} hosil qilish uchun \frac{1}{8} va 5 ni ko'paytirish.

$$30+\frac{5}{8}$$

30 ni \frac{240}{8} kasrga o‘giring.

$$\frac{240}{8}+\frac{5}{8}$$

\frac{240}{8} va \frac{5}{8} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{240+5}{8}$$

245 olish uchun 240 va 5'ni qo'shing.

$$\frac{245}{8}$$

Omil

$$\frac{5 \cdot 7 ^ {2}}{2 ^ {3}} = 30\frac{5}{8} = 30,625$$