(1/2-2+3/5)10 eching

$$( \frac { 1 } { 2 } - 2 + \frac { 3 } { 5 } ) 10$$

Baholash

$$-9$$

Yechim qadamlari

2 ni \frac{4}{2} kasrga o‘giring.

$$\left(\frac{1}{2}-\frac{4}{2}+\frac{3}{5}\right)\times 10$$

\frac{1}{2} va \frac{4}{2} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\left(\frac{1-4}{2}+\frac{3}{5}\right)\times 10$$

-3 olish uchun 1 dan 4 ni ayirish.

$$\left(-\frac{3}{2}+\frac{3}{5}\right)\times 10$$

2 va 5 ning eng kichik umumiy karralisi 10 ga teng. -\frac{3}{2} va \frac{3}{5} ni 10 maxraj bilan kasrlarga aylantirib oling.

$$\left(-\frac{15}{10}+\frac{6}{10}\right)\times 10$$

-\frac{15}{10} va \frac{6}{10} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-15+6}{10}\times 10$$

-9 olish uchun -15 va 6'ni qo'shing.

$$-\frac{9}{10}\times 10$$

10 va 10 ni qisqartiring.

$$-9$$

Omil

$$-9$$