28/9*28-56*28/9+98 eching

$$\frac{ 28 }{ 9 } \times 28-56 \times \frac{ 28 }{ 9 } +98$$

Baholash

$$\frac{98}{9}\approx 10,888888889$$

Yechim qadamlari

\frac{28}{9}\times 28 ni yagona kasrga aylantiring.

$$\frac{28\times 28}{9}-56\times \frac{28}{9}+98$$

784 hosil qilish uchun 28 va 28 ni ko'paytirish.

$$\frac{784}{9}-56\times \frac{28}{9}+98$$

56\times \frac{28}{9} ni yagona kasrga aylantiring.

$$\frac{784}{9}-\frac{56\times 28}{9}+98$$

1568 hosil qilish uchun 56 va 28 ni ko'paytirish.

$$\frac{784}{9}-\frac{1568}{9}+98$$

\frac{784}{9} va \frac{1568}{9} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{784-1568}{9}+98$$

-784 olish uchun 784 dan 1568 ni ayirish.

$$-\frac{784}{9}+98$$

98 ni \frac{882}{9} kasrga o‘giring.

$$-\frac{784}{9}+\frac{882}{9}$$

-\frac{784}{9} va \frac{882}{9} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-784+882}{9}$$

98 olish uchun -784 va 882'ni qo'shing.

$$\frac{98}{9}$$

Omil

$$\frac{2 \cdot 7 ^ {2}}{3 ^ {2}} = 10\frac{8}{9} = 10,88888888888889$$