2%+(7%-2%)*125 eching

$$2 \% +(7 \% -2 \% ) \times 125$$

Baholash

$$\frac{627}{100}=6,27$$

Yechim qadamlari

\frac{2}{100} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{1}{50}+\left(\frac{7}{100}-\frac{2}{100}\right)\times 125$$

\frac{7}{100} va \frac{2}{100} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{1}{50}+\frac{7-2}{100}\times 125$$

5 olish uchun 7 dan 2 ni ayirish.

$$\frac{1}{50}+\frac{5}{100}\times 125$$

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

$$\frac{1}{50}+\frac{1}{20}\times 125$$

\frac{125}{20} hosil qilish uchun \frac{1}{20} va 125 ni ko'paytirish.

$$\frac{1}{50}+\frac{125}{20}$$

\frac{125}{20} ulushini 5 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{1}{50}+\frac{25}{4}$$

50 va 4 ning eng kichik umumiy karralisi 100 ga teng. \frac{1}{50} va \frac{25}{4} ni 100 maxraj bilan kasrlarga aylantirib oling.

$$\frac{2}{100}+\frac{625}{100}$$

\frac{2}{100} va \frac{625}{100} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{2+625}{100}$$

627 olish uchun 2 va 625'ni qo'shing.

$$\frac{627}{100}$$

Omil

$$\frac{3 \cdot 11 \cdot 19}{2 ^ {2} \cdot 5 ^ {2}} = 6\frac{27}{100} = 6,27$$