-3/-8--3/4= eching

$$\frac { - 3 } { - 8 } - \frac { - 3 } { 4 } =$$

Baholash

$$\frac{9}{8}=1,125$$

Yechim qadamlari

Ikkala surat va maxrajdan manfiy belgini olib tashlash bilan \frac{-3}{-8} kasrini \frac{3}{8} ga soddalashtirish mumkin.

$$\frac{3}{8}-\frac{-3}{4}$$

\frac{-3}{4} kasri manfiy belgini olib tashlash bilan -\frac{3}{4} sifatida qayta yozilishi mumkin.

$$\frac{3}{8}-\left(-\frac{3}{4}\right)$$

-\frac{3}{4} ning teskarisi \frac{3}{4} ga teng.

$$\frac{3}{8}+\frac{3}{4}$$

8 va 4 ning eng kichik umumiy karralisi 8 ga teng. \frac{3}{8} va \frac{3}{4} ni 8 maxraj bilan kasrlarga aylantirib oling.

$$\frac{3}{8}+\frac{6}{8}$$

\frac{3}{8} va \frac{6}{8} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{3+6}{8}$$

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

$$\frac{9}{8}$$

Omil

$$\frac{3 ^ {2}}{2 ^ {3}} = 1\frac{1}{8} = 1,125$$