-5(1/2)+5(3)= eching

$$- 5 ( 1 / 2 ) + 5 ( 3 ) =$$

Baholash

$$\frac{25}{2}=12,5$$

Yechim qadamlari

\frac{-5}{2} hosil qilish uchun -5 va \frac{1}{2} ni ko'paytirish.

$$\frac{-5}{2}+5\times 3$$

\frac{-5}{2} kasri manfiy belgini olib tashlash bilan -\frac{5}{2} sifatida qayta yozilishi mumkin.

$$-\frac{5}{2}+5\times 3$$

15 hosil qilish uchun 5 va 3 ni ko'paytirish.

$$-\frac{5}{2}+15$$

15 ni \frac{30}{2} kasrga o‘giring.

$$-\frac{5}{2}+\frac{30}{2}$$

-\frac{5}{2} va \frac{30}{2} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-5+30}{2}$$

25 olish uchun -5 va 30'ni qo'shing.

$$\frac{25}{2}$$

Omil

$$\frac{5 ^ {2}}{2} = 12\frac{1}{2} = 12,5$$