-31/7-23/4 eching

$$- 3 \frac { 1 } { 7 } - 2 \frac { 3 } { 4 }$$

Baholash

$$-\frac{165}{28}\approx -5,892857143$$

Yechim qadamlari

21 hosil qilish uchun 3 va 7 ni ko'paytirish.

$$-\frac{21+1}{7}-\frac{2\times 4+3}{4}$$

22 olish uchun 21 va 1'ni qo'shing.

$$-\frac{22}{7}-\frac{2\times 4+3}{4}$$

8 hosil qilish uchun 2 va 4 ni ko'paytirish.

$$-\frac{22}{7}-\frac{8+3}{4}$$

11 olish uchun 8 va 3'ni qo'shing.

$$-\frac{22}{7}-\frac{11}{4}$$

7 va 4 ning eng kichik umumiy karralisi 28 ga teng. -\frac{22}{7} va \frac{11}{4} ni 28 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{88}{28}-\frac{77}{28}$$

-\frac{88}{28} va \frac{77}{28} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{-88-77}{28}$$

-165 olish uchun -88 dan 77 ni ayirish.

$$-\frac{165}{28}$$

Omil

$$-\frac{165}{28} = -5\frac{25}{28} = -5,892857142857143$$