83/8-21/4 eching

$$8 \frac { 3 } { 8 } - 2 \frac { 1 } { 4 }$$

Baholash

$$\frac{49}{8}=6,125$$

Yechim qadamlari

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

$$\frac{64+3}{8}-\frac{2\times 4+1}{4}$$

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

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

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

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

9 olish uchun 8 va 1'ni qo'shing.

$$\frac{67}{8}-\frac{9}{4}$$

8 va 4 ning eng kichik umumiy karralisi 8 ga teng. \frac{67}{8} va \frac{9}{4} ni 8 maxraj bilan kasrlarga aylantirib oling.

$$\frac{67}{8}-\frac{18}{8}$$

\frac{67}{8} va \frac{18}{8} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{67-18}{8}$$

49 olish uchun 67 dan 18 ni ayirish.

$$\frac{49}{8}$$

Omil

$$\frac{7 ^ {2}}{2 ^ {3}} = 6\frac{1}{8} = 6,125$$