2/5+4/3*3/5-(1/4)^2= eching

$$\frac { 2 } { 5 } + \frac { 4 } { 3 } \cdot \frac { 3 } { 5 } - ( \frac { 1 } { 4 } ) ^ { 2 } =$$

Baholash

$$\frac{91}{80}=1,1375$$

Yechim qadamlari

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{4}{3} ni \frac{3}{5} ga ko‘paytiring.

$$\frac{2}{5}+\frac{4\times 3}{3\times 5}-\left(\frac{1}{4}\right)^{2}$$

Surat va maxrajdagi ikkala 3 ni qisqartiring.

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

\frac{2}{5} va \frac{4}{5} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

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

6 olish uchun 2 va 4'ni qo'shing.

$$\frac{6}{5}-\left(\frac{1}{4}\right)^{2}$$

2 daraja ko‘rsatkichini \frac{1}{4} ga hisoblang va \frac{1}{16} ni qiymatni oling.

$$\frac{6}{5}-\frac{1}{16}$$

5 va 16 ning eng kichik umumiy karralisi 80 ga teng. \frac{6}{5} va \frac{1}{16} ni 80 maxraj bilan kasrlarga aylantirib oling.

$$\frac{96}{80}-\frac{5}{80}$$

\frac{96}{80} va \frac{5}{80} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{96-5}{80}$$

91 olish uchun 96 dan 5 ni ayirish.

$$\frac{91}{80}$$

Omil

$$\frac{7 \cdot 13}{2 ^ {4} \cdot 5} = 1\frac{11}{80} = 1,1375$$