(12/4-5/4)+3/2 eching

$$( \frac { 12 } { 4 } - \frac { 5 } { 4 } ) + \frac { 3 } { 2 }$$

Baholash

$$\frac{13}{4}=3,25$$

Yechim qadamlari

\frac{12}{4} va \frac{5}{4} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{12-5}{4}+\frac{3}{2}$$

7 olish uchun 12 dan 5 ni ayirish.

$$\frac{7}{4}+\frac{3}{2}$$

4 va 2 ning eng kichik umumiy karralisi 4 ga teng. \frac{7}{4} va \frac{3}{2} ni 4 maxraj bilan kasrlarga aylantirib oling.

$$\frac{7}{4}+\frac{6}{4}$$

\frac{7}{4} va \frac{6}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{7+6}{4}$$

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

$$\frac{13}{4}$$

Omil

$$\frac{13}{2 ^ {2}} = 3\frac{1}{4} = 3,25$$