3/8+5/2-3/4 eching

$$\frac { 3 } { 8 } + \frac { 5 } { 2 } - \frac { 3 } { 4 }$$

Baholash

$$\frac{17}{8}=2,125$$

Yechim qadamlari

8 va 2 ning eng kichik umumiy karralisi 8 ga teng. \frac{3}{8} va \frac{5}{2} ni 8 maxraj bilan kasrlarga aylantirib oling.

$$\frac{3}{8}+\frac{20}{8}-\frac{3}{4}$$

\frac{3}{8} va \frac{20}{8} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{3+20}{8}-\frac{3}{4}$$

23 olish uchun 3 va 20'ni qo'shing.

$$\frac{23}{8}-\frac{3}{4}$$

8 va 4 ning eng kichik umumiy karralisi 8 ga teng. \frac{23}{8} va \frac{3}{4} ni 8 maxraj bilan kasrlarga aylantirib oling.

$$\frac{23}{8}-\frac{6}{8}$$

\frac{23}{8} va \frac{6}{8} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{23-6}{8}$$

17 olish uchun 23 dan 6 ni ayirish.

$$\frac{17}{8}$$

Omil

$$\frac{17}{2 ^ {3}} = 2\frac{1}{8} = 2,125$$