53/4-22/5 eching

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

Baholash

$$\frac{67}{20}=3,35$$

Yechim qadamlari

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

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

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

$$\frac{23}{4}-\frac{2\times 5+2}{5}$$

10 hosil qilish uchun 2 va 5 ni ko'paytirish.

$$\frac{23}{4}-\frac{10+2}{5}$$

12 olish uchun 10 va 2'ni qo'shing.

$$\frac{23}{4}-\frac{12}{5}$$

4 va 5 ning eng kichik umumiy karralisi 20 ga teng. \frac{23}{4} va \frac{12}{5} ni 20 maxraj bilan kasrlarga aylantirib oling.

$$\frac{115}{20}-\frac{48}{20}$$

\frac{115}{20} va \frac{48}{20} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{115-48}{20}$$

67 olish uchun 115 dan 48 ni ayirish.

$$\frac{67}{20}$$

Omil

$$\frac{67}{2 ^ {2} \cdot 5} = 3\frac{7}{20} = 3,35$$