42/5-34/4 eching

$$4 \frac{ 2 }{ 5 } -3 \frac{ 4 }{ 4 }$$

Baholash

$$\frac{2}{5}=0,4$$

Yechim qadamlari

20 hosil qilish uchun 4 va 5 ni ko'paytirish.

$$\frac{20+2}{5}-\frac{3\times 4+4}{4}$$

22 olish uchun 20 va 2'ni qo'shing.

$$\frac{22}{5}-\frac{3\times 4+4}{4}$$

12 hosil qilish uchun 3 va 4 ni ko'paytirish.

$$\frac{22}{5}-\frac{12+4}{4}$$

16 olish uchun 12 va 4'ni qo'shing.

$$\frac{22}{5}-\frac{16}{4}$$

4 ni olish uchun 16 ni 4 ga bo‘ling.

$$\frac{22}{5}-4$$

4 ni \frac{20}{5} kasrga o‘giring.

$$\frac{22}{5}-\frac{20}{5}$$

\frac{22}{5} va \frac{20}{5} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{22-20}{5}$$

2 olish uchun 22 dan 20 ni ayirish.

$$\frac{2}{5}$$

Omil

$$\frac{2}{5} = 0,4$$