2+5*(-6/-8) eching

$$2 + 5 \cdot ( \frac { - 6 } { - 8 } )$$

Baholash

$$\frac{23}{4}=5,75$$

Yechim qadamlari

\frac{-6}{-8} ulushini -2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$2+5\times \frac{3}{4}$$

5\times \frac{3}{4} ni yagona kasrga aylantiring.

$$2+\frac{5\times 3}{4}$$

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

$$2+\frac{15}{4}$$

2 ni \frac{8}{4} kasrga o‘giring.

$$\frac{8}{4}+\frac{15}{4}$$

\frac{8}{4} va \frac{15}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{8+15}{4}$$

23 olish uchun 8 va 15'ni qo'shing.

$$\frac{23}{4}$$

Omil

$$\frac{23}{2 ^ {2}} = 5\frac{3}{4} = 5,75$$