13/4+31/8? eching

$$1 \frac { 3 } { 4 } + 3 \frac { 1 } { 8 } ?$$

Baholash

$$\frac{39}{8}=4,875$$

Yechim qadamlari

4 hosil qilish uchun 1 va 4 ni ko'paytirish.

$$\frac{4+3}{4}+\frac{3\times 8+1}{8}$$

7 olish uchun 4 va 3'ni qo'shing.

$$\frac{7}{4}+\frac{3\times 8+1}{8}$$

24 hosil qilish uchun 3 va 8 ni ko'paytirish.

$$\frac{7}{4}+\frac{24+1}{8}$$

25 olish uchun 24 va 1'ni qo'shing.

$$\frac{7}{4}+\frac{25}{8}$$

4 va 8 ning eng kichik umumiy karralisi 8 ga teng. \frac{7}{4} va \frac{25}{8} ni 8 maxraj bilan kasrlarga aylantirib oling.

$$\frac{14}{8}+\frac{25}{8}$$

\frac{14}{8} va \frac{25}{8} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{14+25}{8}$$

39 olish uchun 14 va 25'ni qo'shing.

$$\frac{39}{8}$$

Omil

$$\frac{3 \cdot 13}{2 ^ {3}} = 4\frac{7}{8} = 4,875$$