18/5/frac{2{25}-5/16} eching

$$\frac{ \frac{ 18 }{ 5 } }{ \frac{ 2 }{ 25 } - \frac{ 5 }{ 16 } }$$

Baholash

$$-\frac{480}{31}\approx -15,483870968$$

Yechim qadamlari

25 va 16 ning eng kichik umumiy karralisi 400 ga teng. \frac{2}{25} va \frac{5}{16} ni 400 maxraj bilan kasrlarga aylantirib oling.

$$\frac{\frac{18}{5}}{\frac{32}{400}-\frac{125}{400}}$$

\frac{32}{400} va \frac{125}{400} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{\frac{18}{5}}{\frac{32-125}{400}}$$

-93 olish uchun 32 dan 125 ni ayirish.

$$\frac{\frac{18}{5}}{-\frac{93}{400}}$$

\frac{18}{5} ni -\frac{93}{400} ga bo'lish \frac{18}{5} ga k'paytirish -\frac{93}{400} ga qaytarish.

$$\frac{18}{5}\left(-\frac{400}{93}\right)$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{18}{5} ni -\frac{400}{93} ga ko‘paytiring.

$$\frac{18\left(-400\right)}{5\times 93}$$

\frac{18\left(-400\right)}{5\times 93} kasridagi ko‘paytirishlarni bajaring.

$$\frac{-7200}{465}$$

\frac{-7200}{465} ulushini 15 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$-\frac{480}{31}$$

Omil

$$-\frac{480}{31} = -15\frac{15}{31} = -15,483870967741936$$