23/5-7/8 eching

$$2 \frac { 3 } { 5 } - \frac { 7 } { 8 }$$

Baholash

$$\frac{69}{40}=1,725$$

Yechim qadamlari

10 hosil qilish uchun 2 va 5 ni ko'paytirish.

$$\frac{10+3}{5}-\frac{7}{8}$$

13 olish uchun 10 va 3'ni qo'shing.

$$\frac{13}{5}-\frac{7}{8}$$

5 va 8 ning eng kichik umumiy karralisi 40 ga teng. \frac{13}{5} va \frac{7}{8} ni 40 maxraj bilan kasrlarga aylantirib oling.

$$\frac{104}{40}-\frac{35}{40}$$

\frac{104}{40} va \frac{35}{40} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{104-35}{40}$$

69 olish uchun 104 dan 35 ni ayirish.

$$\frac{69}{40}$$

Omil

$$\frac{3 \cdot 23}{2 ^ {3} \cdot 5} = 1\frac{29}{40} = 1,725$$