31/2*(-51/7)div(14/5) eching

$$3 \frac { 1 } { 2 } \times (- 5 \frac { 1 } { 7 } ) \div ( 1 \frac { 4 } { 5 } )$$

Baholash

$$-10$$

Yechim qadamlari

6 hosil qilish uchun 3 va 2 ni ko'paytirish.

$$\frac{\frac{6+1}{2}\left(-\frac{5\times 7+1}{7}\right)}{\frac{1\times 5+4}{5}}$$

7 olish uchun 6 va 1'ni qo'shing.

$$\frac{\frac{7}{2}\left(-\frac{5\times 7+1}{7}\right)}{\frac{1\times 5+4}{5}}$$

35 hosil qilish uchun 5 va 7 ni ko'paytirish.

$$\frac{\frac{7}{2}\left(-\frac{35+1}{7}\right)}{\frac{1\times 5+4}{5}}$$

36 olish uchun 35 va 1'ni qo'shing.

$$\frac{\frac{7}{2}\left(-\frac{36}{7}\right)}{\frac{1\times 5+4}{5}}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{7}{2} ni -\frac{36}{7} ga ko‘paytiring.

$$\frac{\frac{7\left(-36\right)}{2\times 7}}{\frac{1\times 5+4}{5}}$$

Surat va maxrajdagi ikkala 7 ni qisqartiring.

$$\frac{\frac{-36}{2}}{\frac{1\times 5+4}{5}}$$

-18 ni olish uchun -36 ni 2 ga bo‘ling.

$$\frac{-18}{\frac{1\times 5+4}{5}}$$

5 hosil qilish uchun 1 va 5 ni ko'paytirish.

$$\frac{-18}{\frac{5+4}{5}}$$

9 olish uchun 5 va 4'ni qo'shing.

$$\frac{-18}{\frac{9}{5}}$$

-18 ni \frac{9}{5} ga bo'lish -18 ga k'paytirish \frac{9}{5} ga qaytarish.

$$-18\times \frac{5}{9}$$

-18\times \frac{5}{9} ni yagona kasrga aylantiring.

$$\frac{-18\times 5}{9}$$

-90 hosil qilish uchun -18 va 5 ni ko'paytirish.

$$\frac{-90}{9}$$

-10 ni olish uchun -90 ni 9 ga bo‘ling.

$$-10$$

Omil

$$-10$$