1/5*3/2+11/4 eching

$$\frac { 1 } { 5 } \times \frac { 3 } { 2 } + 1 \frac { 1 } { 4 }$$

Baholash

$$\frac{31}{20}=1,55$$

Yechim qadamlari

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{1}{5} ni \frac{3}{2} ga ko‘paytiring.

$$\frac{1\times 3}{5\times 2}+\frac{1\times 4+1}{4}$$

\frac{1\times 3}{5\times 2} kasridagi ko‘paytirishlarni bajaring.

$$\frac{3}{10}+\frac{1\times 4+1}{4}$$

4 hosil qilish uchun 1 va 4 ni ko'paytirish.

$$\frac{3}{10}+\frac{4+1}{4}$$

5 olish uchun 4 va 1'ni qo'shing.

$$\frac{3}{10}+\frac{5}{4}$$

10 va 4 ning eng kichik umumiy karralisi 20 ga teng. \frac{3}{10} va \frac{5}{4} ni 20 maxraj bilan kasrlarga aylantirib oling.

$$\frac{6}{20}+\frac{25}{20}$$

\frac{6}{20} va \frac{25}{20} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{6+25}{20}$$

31 olish uchun 6 va 25'ni qo'shing.

$$\frac{31}{20}$$

Omil

$$\frac{31}{2 ^ {2} \cdot 5} = 1\frac{11}{20} = 1,55$$