-63/8-[2+(-4/7)div111/21]_{-2} eching

$$- 6 \frac { 3 } { 8 } - [ 2 + ( - \frac { 4 } { 7 } ) \div 1 \frac { 11 } { 21 } ] _ { - 2 }$$

Baholash

$$-8$$

Yechim qadamlari

48 hosil qilish uchun 6 va 8 ni ko'paytirish.

$$-\frac{48+3}{8}-\left(2+\frac{-\frac{4}{7}}{\frac{1\times 21+11}{21}}\right)$$

51 olish uchun 48 va 3'ni qo'shing.

$$-\frac{51}{8}-\left(2+\frac{-\frac{4}{7}}{\frac{1\times 21+11}{21}}\right)$$

-\frac{4}{7} ni \frac{1\times 21+11}{21} ga bo'lish -\frac{4}{7} ga k'paytirish \frac{1\times 21+11}{21} ga qaytarish.

$$-\frac{51}{8}-\left(2+\frac{-4\times 21}{7\left(1\times 21+11\right)}\right)$$

Surat va maxrajdagi ikkala 7 ni qisqartiring.

$$-\frac{51}{8}-\left(2+\frac{-4\times 3}{11+21}\right)$$

-12 hosil qilish uchun -4 va 3 ni ko'paytirish.

$$-\frac{51}{8}-\left(2+\frac{-12}{11+21}\right)$$

32 olish uchun 11 va 21'ni qo'shing.

$$-\frac{51}{8}-\left(2+\frac{-12}{32}\right)$$

\frac{-12}{32} ulushini 4 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$-\frac{51}{8}-\left(2-\frac{3}{8}\right)$$

2 ni \frac{16}{8} kasrga o‘giring.

$$-\frac{51}{8}-\left(\frac{16}{8}-\frac{3}{8}\right)$$

\frac{16}{8} va \frac{3}{8} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$-\frac{51}{8}-\frac{16-3}{8}$$

13 olish uchun 16 dan 3 ni ayirish.

$$-\frac{51}{8}-\frac{13}{8}$$

-\frac{51}{8} va \frac{13}{8} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{-51-13}{8}$$

-64 olish uchun -51 dan 13 ni ayirish.

$$\frac{-64}{8}$$

-8 ni olish uchun -64 ni 8 ga bo‘ling.

$$-8$$

Omil

$$-8$$