8/13div5/2-4/5*8/13 eching

$$\frac { 8 } { 13 } \div \frac { 5 } { 2 } - \frac { 4 } { 5 } \times \frac { 8 } { 13 }$$

Baholash

$$-\frac{16}{65}\approx -0,246153846$$

Yechim qadamlari

\frac{8}{13} ni \frac{5}{2} ga bo'lish \frac{8}{13} ga k'paytirish \frac{5}{2} ga qaytarish.

$$\frac{8}{13}\times \frac{2}{5}-\frac{4}{5}\times \frac{8}{13}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{8}{13} ni \frac{2}{5} ga ko‘paytiring.

$$\frac{8\times 2}{13\times 5}-\frac{4}{5}\times \frac{8}{13}$$

\frac{8\times 2}{13\times 5} kasridagi ko‘paytirishlarni bajaring.

$$\frac{16}{65}-\frac{4}{5}\times \frac{8}{13}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{4}{5} ni \frac{8}{13} ga ko‘paytiring.

$$\frac{16}{65}-\frac{4\times 8}{5\times 13}$$

\frac{4\times 8}{5\times 13} kasridagi ko‘paytirishlarni bajaring.

$$\frac{16}{65}-\frac{32}{65}$$

\frac{16}{65} va \frac{32}{65} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{16-32}{65}$$

-16 olish uchun 16 dan 32 ni ayirish.

$$-\frac{16}{65}$$

Omil

$$-\frac{16}{65} = -0,24615384615384617$$