9*9/13+9/13div9 eching

$$9 \times \frac { 9 } { 13 } + \frac { 9 } { 13 } \div 9$$

Baholash

$$\frac{82}{13}\approx 6,307692308$$

Yechim qadamlari

9\times \frac{9}{13} ni yagona kasrga aylantiring.

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

81 hosil qilish uchun 9 va 9 ni ko'paytirish.

$$\frac{81}{13}+\frac{\frac{9}{13}}{9}$$

\frac{\frac{9}{13}}{9} ni yagona kasrga aylantiring.

$$\frac{81}{13}+\frac{9}{13\times 9}$$

Surat va maxrajdagi ikkala 9 ni qisqartiring.

$$\frac{81}{13}+\frac{1}{13}$$

\frac{81}{13} va \frac{1}{13} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{81+1}{13}$$

82 olish uchun 81 va 1'ni qo'shing.

$$\frac{82}{13}$$

Omil

$$\frac{2 \cdot 41}{13} = 6\frac{4}{13} = 6,3076923076923075$$