5*(7+4)-9div2(5/4) eching

$$5 \times ( 7 + 4 ) - 9 \div 2 ( \frac { 5 } { 4 } )$$

Baholash

$$\frac{395}{8}=49,375$$

Yechim qadamlari

11 olish uchun 7 va 4'ni qo'shing.

$$5\times 11-\frac{9}{2}\times \frac{5}{4}$$

55 hosil qilish uchun 5 va 11 ni ko'paytirish.

$$55-\frac{9}{2}\times \frac{5}{4}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{9}{2} ni \frac{5}{4} ga ko‘paytiring.

$$55-\frac{9\times 5}{2\times 4}$$

\frac{9\times 5}{2\times 4} kasridagi ko‘paytirishlarni bajaring.

$$55-\frac{45}{8}$$

55 ni \frac{440}{8} kasrga o‘giring.

$$\frac{440}{8}-\frac{45}{8}$$

\frac{440}{8} va \frac{45}{8} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{440-45}{8}$$

395 olish uchun 440 dan 45 ni ayirish.

$$\frac{395}{8}$$

Omil

$$\frac{5 \cdot 79}{2 ^ {3}} = 49\frac{3}{8} = 49,375$$