3/8+21/2 eching

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

Baholash

$$\frac{23}{8}=2,875$$

Yechim qadamlari

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

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

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

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

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

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

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

$$\frac{23}{8}$$

Omil

$$\frac{23}{2 ^ {3}} = 2\frac{7}{8} = 2,875$$