(2/5*3+2):4= eching

$$( \frac { 2 } { 5 } \cdot 3 + 2 ) : 4 =$$

Baholash

$$\frac{4}{5}=0,8$$

Yechim qadamlari

\frac{2}{5}\times 3 ni yagona kasrga aylantiring.

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

6 hosil qilish uchun 2 va 3 ni ko'paytirish.

$$\frac{\frac{6}{5}+2}{4}$$

2 ni \frac{10}{5} kasrga o‘giring.

$$\frac{\frac{6}{5}+\frac{10}{5}}{4}$$

\frac{6}{5} va \frac{10}{5} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{\frac{6+10}{5}}{4}$$

16 olish uchun 6 va 10'ni qo'shing.

$$\frac{\frac{16}{5}}{4}$$

\frac{\frac{16}{5}}{4} ni yagona kasrga aylantiring.

$$\frac{16}{5\times 4}$$

20 hosil qilish uchun 5 va 4 ni ko'paytirish.

$$\frac{16}{20}$$

\frac{16}{20} ulushini 4 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{4}{5}$$

Omil

$$\frac{2 ^ {2}}{5} = 0,8$$