51/4-34/5 eching

$$5 \frac { 1 } { 4 } - 3 \frac { 4 } { 5 }$$

Baholash

$$\frac{29}{20}=1,45$$

Yechim qadamlari

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

$$\frac{20+1}{4}-\frac{3\times 5+4}{5}$$

21 olish uchun 20 va 1'ni qo'shing.

$$\frac{21}{4}-\frac{3\times 5+4}{5}$$

15 hosil qilish uchun 3 va 5 ni ko'paytirish.

$$\frac{21}{4}-\frac{15+4}{5}$$

19 olish uchun 15 va 4'ni qo'shing.

$$\frac{21}{4}-\frac{19}{5}$$

4 va 5 ning eng kichik umumiy karralisi 20 ga teng. \frac{21}{4} va \frac{19}{5} ni 20 maxraj bilan kasrlarga aylantirib oling.

$$\frac{105}{20}-\frac{76}{20}$$

\frac{105}{20} va \frac{76}{20} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{105-76}{20}$$

29 olish uchun 105 dan 76 ni ayirish.

$$\frac{29}{20}$$

Omil

$$\frac{29}{2 ^ {2} \cdot 5} = 1\frac{9}{20} = 1,45$$