13/25*3+77/250*4+21/125*5 eching

$$\frac { 13 } { 25 } \times 3 + \frac { 77 } { 250 } \times 4 + \frac { 21 } { 125 } \times 5$$

Baholash

$$\frac{454}{125}=3,632$$

Yechim qadamlari

\frac{13}{25}\times 3 ni yagona kasrga aylantiring.

$$\frac{13\times 3}{25}+\frac{77}{250}\times 4+\frac{21}{125}\times 5$$

39 hosil qilish uchun 13 va 3 ni ko'paytirish.

$$\frac{39}{25}+\frac{77}{250}\times 4+\frac{21}{125}\times 5$$

\frac{77}{250}\times 4 ni yagona kasrga aylantiring.

$$\frac{39}{25}+\frac{77\times 4}{250}+\frac{21}{125}\times 5$$

308 hosil qilish uchun 77 va 4 ni ko'paytirish.

$$\frac{39}{25}+\frac{308}{250}+\frac{21}{125}\times 5$$

\frac{308}{250} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{39}{25}+\frac{154}{125}+\frac{21}{125}\times 5$$

25 va 125 ning eng kichik umumiy karralisi 125 ga teng. \frac{39}{25} va \frac{154}{125} ni 125 maxraj bilan kasrlarga aylantirib oling.

$$\frac{195}{125}+\frac{154}{125}+\frac{21}{125}\times 5$$

\frac{195}{125} va \frac{154}{125} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{195+154}{125}+\frac{21}{125}\times 5$$

349 olish uchun 195 va 154'ni qo'shing.

$$\frac{349}{125}+\frac{21}{125}\times 5$$

\frac{21}{125}\times 5 ni yagona kasrga aylantiring.

$$\frac{349}{125}+\frac{21\times 5}{125}$$

105 hosil qilish uchun 21 va 5 ni ko'paytirish.

$$\frac{349}{125}+\frac{105}{125}$$

\frac{349}{125} va \frac{105}{125} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{349+105}{125}$$

454 olish uchun 349 va 105'ni qo'shing.

$$\frac{454}{125}$$

Omil

$$\frac{2 \cdot 227}{5 ^ {3}} = 3\frac{79}{125} = 3,632$$