=405+12915-14/14*5 eching

$$= 405 + \frac { 12915 - 14 } { 14 } \times 5$$

Baholash

$$\frac{10025}{2}=5012,5$$

Yechim qadamlari

12901 olish uchun 12915 dan 14 ni ayirish.

$$405+\frac{12901}{14}\times 5$$

\frac{12901}{14} ulushini 7 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$405+\frac{1843}{2}\times 5$$

\frac{1843}{2}\times 5 ni yagona kasrga aylantiring.

$$405+\frac{1843\times 5}{2}$$

9215 hosil qilish uchun 1843 va 5 ni ko'paytirish.

$$405+\frac{9215}{2}$$

405 ni \frac{810}{2} kasrga o‘giring.

$$\frac{810}{2}+\frac{9215}{2}$$

\frac{810}{2} va \frac{9215}{2} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{810+9215}{2}$$

10025 olish uchun 810 va 9215'ni qo'shing.

$$\frac{10025}{2}$$

Omil

$$\frac{5 ^ {2} \cdot 401}{2} = 5012\frac{1}{2} = 5012,5$$