31/2+21/4 eching

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

Baholash

$$\frac{23}{4}=5,75$$

Yechim qadamlari

6 hosil qilish uchun 3 va 2 ni ko'paytirish.

$$\frac{6+1}{2}+\frac{2\times 4+1}{4}$$

7 olish uchun 6 va 1'ni qo'shing.

$$\frac{7}{2}+\frac{2\times 4+1}{4}$$

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

$$\frac{7}{2}+\frac{8+1}{4}$$

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

$$\frac{7}{2}+\frac{9}{4}$$

2 va 4 ning eng kichik umumiy karralisi 4 ga teng. \frac{7}{2} va \frac{9}{4} ni 4 maxraj bilan kasrlarga aylantirib oling.

$$\frac{14}{4}+\frac{9}{4}$$

\frac{14}{4} va \frac{9}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{14+9}{4}$$

23 olish uchun 14 va 9'ni qo'shing.

$$\frac{23}{4}$$

Omil

$$\frac{23}{2 ^ {2}} = 5\frac{3}{4} = 5,75$$