2(-7/2)+3(-3/2) eching

$$2(- \frac{ 7 }{ 2 } )+3(- \frac{ 3 }{ 2 } )$$

Baholash

$$-\frac{23}{2}=-11,5$$

Yechim qadamlari

2 va 2 ni qisqartiring.

$$-7+3\left(-\frac{3}{2}\right)$$

3\left(-\frac{3}{2}\right) ni yagona kasrga aylantiring.

$$-7+\frac{3\left(-3\right)}{2}$$

-9 hosil qilish uchun 3 va -3 ni ko'paytirish.

$$-7+\frac{-9}{2}$$

\frac{-9}{2} kasri manfiy belgini olib tashlash bilan -\frac{9}{2} sifatida qayta yozilishi mumkin.

$$-7-\frac{9}{2}$$

-7 ni -\frac{14}{2} kasrga o‘giring.

$$-\frac{14}{2}-\frac{9}{2}$$

-\frac{14}{2} va \frac{9}{2} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{-14-9}{2}$$

-23 olish uchun -14 dan 9 ni ayirish.

$$-\frac{23}{2}$$

Omil

$$-\frac{23}{2} = -11\frac{1}{2} = -11,5$$