800*(1-45%) eching

$$800 \times ( 1 - 45 \% )$$

Baholash

$$440$$

Yechim qadamlari

\frac{45}{100} ulushini 5 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$800\left(1-\frac{9}{20}\right)$$

1 ni \frac{20}{20} kasrga o‘giring.

$$800\left(\frac{20}{20}-\frac{9}{20}\right)$$

\frac{20}{20} va \frac{9}{20} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$800\times \frac{20-9}{20}$$

11 olish uchun 20 dan 9 ni ayirish.

$$800\times \frac{11}{20}$$

800\times \frac{11}{20} ni yagona kasrga aylantiring.

$$\frac{800\times 11}{20}$$

8800 hosil qilish uchun 800 va 11 ni ko'paytirish.

$$\frac{8800}{20}$$

440 ni olish uchun 8800 ni 20 ga bo‘ling.

$$440$$

Omil

$$2^{3}\times 5\times 11$$