21/7+11/4 eching

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

Baholash

$$\frac{95}{28}\approx 3,392857143$$

Yechim qadamlari

14 hosil qilish uchun 2 va 7 ni ko'paytirish.

$$\frac{14+1}{7}+\frac{1\times 4+1}{4}$$

15 olish uchun 14 va 1'ni qo'shing.

$$\frac{15}{7}+\frac{1\times 4+1}{4}$$

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

$$\frac{15}{7}+\frac{4+1}{4}$$

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

$$\frac{15}{7}+\frac{5}{4}$$

7 va 4 ning eng kichik umumiy karralisi 28 ga teng. \frac{15}{7} va \frac{5}{4} ni 28 maxraj bilan kasrlarga aylantirib oling.

$$\frac{60}{28}+\frac{35}{28}$$

\frac{60}{28} va \frac{35}{28} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{60+35}{28}$$

95 olish uchun 60 va 35'ni qo'shing.

$$\frac{95}{28}$$

Omil

$$\frac{5 \cdot 19}{2 ^ {2} \cdot 7} = 3\frac{11}{28} = 3,392857142857143$$