-9/4+1/4-1/2 eching

$$- \frac{ 9 }{ 4 } + \frac{ 1 }{ 4 } - \frac{ 1 }{ 2 }$$

Baholash

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

Yechim qadamlari

-\frac{9}{4} va \frac{1}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-9+1}{4}-\frac{1}{2}$$

-8 olish uchun -9 va 1'ni qo'shing.

$$\frac{-8}{4}-\frac{1}{2}$$

-2 ni olish uchun -8 ni 4 ga bo‘ling.

$$-2-\frac{1}{2}$$

-2 ni -\frac{4}{2} kasrga o‘giring.

$$-\frac{4}{2}-\frac{1}{2}$$

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

$$\frac{-4-1}{2}$$

-5 olish uchun -4 dan 1 ni ayirish.

$$-\frac{5}{2}$$

Omil

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