1/8+2(9/7)div15/3 eching

$$\frac{ 1 }{ 8 } + 2 ( \frac{ 9 }{ 7 } ) \div \frac{15}{3}$$

Baholash

$$\frac{179}{280}\approx 0,639285714$$

Yechim qadamlari

2\times \frac{9}{7} ni yagona kasrga aylantiring.

$$\frac{1}{8}+\frac{\frac{2\times 9}{7}}{\frac{15}{3}}$$

18 hosil qilish uchun 2 va 9 ni ko'paytirish.

$$\frac{1}{8}+\frac{\frac{18}{7}}{\frac{15}{3}}$$

5 ni olish uchun 15 ni 3 ga bo‘ling.

$$\frac{1}{8}+\frac{\frac{18}{7}}{5}$$

\frac{\frac{18}{7}}{5} ni yagona kasrga aylantiring.

$$\frac{1}{8}+\frac{18}{7\times 5}$$

35 hosil qilish uchun 7 va 5 ni ko'paytirish.

$$\frac{1}{8}+\frac{18}{35}$$

8 va 35 ning eng kichik umumiy karralisi 280 ga teng. \frac{1}{8} va \frac{18}{35} ni 280 maxraj bilan kasrlarga aylantirib oling.

$$\frac{35}{280}+\frac{144}{280}$$

\frac{35}{280} va \frac{144}{280} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{35+144}{280}$$

179 olish uchun 35 va 144'ni qo'shing.

$$\frac{179}{280}$$

Omil

$$\frac{179}{2 ^ {3} \cdot 5 \cdot 7} = 0,6392857142857142$$