78%text{of}125+25%text{of}161=? eching

$$78 \% \text { of } 125 + 25 \% \text { of } 161 = ?$$

Baholash

$$\frac{551}{4}=137,75$$

Yechim qadamlari

\frac{78}{100} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{39}{50}\times 125+\frac{25}{100}\times 161$$

\frac{39}{50}\times 125 ni yagona kasrga aylantiring.

$$\frac{39\times 125}{50}+\frac{25}{100}\times 161$$

4875 hosil qilish uchun 39 va 125 ni ko'paytirish.

$$\frac{4875}{50}+\frac{25}{100}\times 161$$

\frac{4875}{50} ulushini 25 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{195}{2}+\frac{25}{100}\times 161$$

\frac{25}{100} ulushini 25 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{195}{2}+\frac{1}{4}\times 161$$

\frac{161}{4} hosil qilish uchun \frac{1}{4} va 161 ni ko'paytirish.

$$\frac{195}{2}+\frac{161}{4}$$

2 va 4 ning eng kichik umumiy karralisi 4 ga teng. \frac{195}{2} va \frac{161}{4} ni 4 maxraj bilan kasrlarga aylantirib oling.

$$\frac{390}{4}+\frac{161}{4}$$

\frac{390}{4} va \frac{161}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{390+161}{4}$$

551 olish uchun 390 va 161'ni qo'shing.

$$\frac{551}{4}$$

Omil

$$\frac{19 \cdot 29}{2 ^ {2}} = 137\frac{3}{4} = 137,75$$