-9*n/3n-3n/n*3n/n-3n eching

$$- 9 \cdot \frac { n } { 3 n } - \frac { 3 n } { n } \times \frac { 3 n } { n - 3 n }$$

Baholash

$$\frac{3}{2}=1,5$$

Yechim qadamlari

Surat va maxrajdagi ikkala n ni qisqartiring.

$$-9\times \frac{1}{3}-\frac{3n}{n}\times \frac{3n}{n-3n}$$

\frac{-9}{3} hosil qilish uchun -9 va \frac{1}{3} ni ko'paytirish.

$$\frac{-9}{3}-\frac{3n}{n}\times \frac{3n}{n-3n}$$

-3 ni olish uchun -9 ni 3 ga bo‘ling.

$$-3-\frac{3n}{n}\times \frac{3n}{n-3n}$$

Surat va maxrajdagi ikkala n ni qisqartiring.

$$-3-3\times \frac{3n}{n-3n}$$

-2n ni olish uchun n va -3n ni birlashtirish.

$$-3-3\times \frac{3n}{-2n}$$

Surat va maxrajdagi ikkala n ni qisqartiring.

$$-3-3\times \frac{3}{-2}$$

\frac{3}{-2} kasri manfiy belgini olib tashlash bilan -\frac{3}{2} sifatida qayta yozilishi mumkin.

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

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

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

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

$$-3-\frac{-9}{2}$$

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

$$-3-\left(-\frac{9}{2}\right)$$

-\frac{9}{2} ning teskarisi \frac{9}{2} ga teng.

$$-3+\frac{9}{2}$$

-3 ni -\frac{6}{2} kasrga o‘giring.

$$-\frac{6}{2}+\frac{9}{2}$$

-\frac{6}{2} va \frac{9}{2} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-6+9}{2}$$

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

$$\frac{3}{2}$$

Omil

$$\frac{3}{2} = 1\frac{1}{2} = 1,5$$