3+1/5*7/2 eching

$$3 + \frac { 1 } { 5 } \cdot \frac { 7 } { 2 }$$

Baholash

$$\frac{37}{10}=3,7$$

Yechim qadamlari

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{1}{5} ni \frac{7}{2} ga ko‘paytiring.

$$3+\frac{1\times 7}{5\times 2}$$

\frac{1\times 7}{5\times 2} kasridagi ko‘paytirishlarni bajaring.

$$3+\frac{7}{10}$$

3 ni \frac{30}{10} kasrga o‘giring.

$$\frac{30}{10}+\frac{7}{10}$$

\frac{30}{10} va \frac{7}{10} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{30+7}{10}$$

37 olish uchun 30 va 7'ni qo'shing.

$$\frac{37}{10}$$

Omil

$$\frac{37}{2 \cdot 5} = 3\frac{7}{10} = 3,7$$