83/8-21/2 eching

$$8 \frac { 3 } { 8 } - 2 \frac { 1 } { 2 }$$

Baholash

$$\frac{47}{8}=5,875$$

Yechim qadamlari

64 hosil qilish uchun 8 va 8 ni ko'paytirish.

$$\frac{64+3}{8}-\frac{2\times 2+1}{2}$$

67 olish uchun 64 va 3'ni qo'shing.

$$\frac{67}{8}-\frac{2\times 2+1}{2}$$

4 hosil qilish uchun 2 va 2 ni ko'paytirish.

$$\frac{67}{8}-\frac{4+1}{2}$$

5 olish uchun 4 va 1'ni qo'shing.

$$\frac{67}{8}-\frac{5}{2}$$

8 va 2 ning eng kichik umumiy karralisi 8 ga teng. \frac{67}{8} va \frac{5}{2} ni 8 maxraj bilan kasrlarga aylantirib oling.

$$\frac{67}{8}-\frac{20}{8}$$

\frac{67}{8} va \frac{20}{8} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{67-20}{8}$$

47 olish uchun 67 dan 20 ni ayirish.

$$\frac{47}{8}$$

Omil

$$\frac{47}{2 ^ {3}} = 5\frac{7}{8} = 5,875$$