20-8/frac{10{sqrt{13}}} eching

$$\frac{ 20-8 }{ \frac{ 10 }{ \sqrt{ 13 } } }$$

Baholash

$$\frac{6\sqrt{13}}{5}\approx 4,326661531$$

Yechim qadamlari

12 olish uchun 20 dan 8 ni ayirish.

$$\frac{12}{\frac{10}{\sqrt{13}}}$$

\frac{10}{\sqrt{13}} maxrajini \sqrt{13} orqali surat va maxrajini koʻpaytirish orqali ratsionallashtiring.

$$\frac{12}{\frac{10\sqrt{13}}{\left(\sqrt{13}\right)^{2}}}$$

\sqrt{13} kvadrati – 13.

$$\frac{12}{\frac{10\sqrt{13}}{13}}$$

12 ni \frac{10\sqrt{13}}{13} ga bo'lish 12 ga k'paytirish \frac{10\sqrt{13}}{13} ga qaytarish.

$$\frac{12\times 13}{10\sqrt{13}}$$

Surat va maxrajdagi ikkala 2 ni qisqartiring.

$$\frac{6\times 13}{5\sqrt{13}}$$

\frac{6\times 13}{5\sqrt{13}} maxrajini \sqrt{13} orqali surat va maxrajini koʻpaytirish orqali ratsionallashtiring.

$$\frac{6\times 13\sqrt{13}}{5\left(\sqrt{13}\right)^{2}}$$

\sqrt{13} kvadrati – 13.

$$\frac{6\times 13\sqrt{13}}{5\times 13}$$

78 hosil qilish uchun 6 va 13 ni ko'paytirish.

$$\frac{78\sqrt{13}}{5\times 13}$$

65 hosil qilish uchun 5 va 13 ni ko'paytirish.

$$\frac{78\sqrt{13}}{65}$$

\frac{6}{5}\sqrt{13} ni olish uchun 78\sqrt{13} ni 65 ga bo‘ling.

$$\frac{6}{5}\sqrt{13}$$