39/5-35/8+51/20 eching

$$\frac { 39 } { 5 } - \frac { 35 } { 8 } + \frac { 51 } { 20 }$$

Baholash

$$\frac{239}{40}=5,975$$

Yechim qadamlari

5 va 8 ning eng kichik umumiy karralisi 40 ga teng. \frac{39}{5} va \frac{35}{8} ni 40 maxraj bilan kasrlarga aylantirib oling.

$$\frac{312}{40}-\frac{175}{40}+\frac{51}{20}$$

\frac{312}{40} va \frac{175}{40} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{312-175}{40}+\frac{51}{20}$$

137 olish uchun 312 dan 175 ni ayirish.

$$\frac{137}{40}+\frac{51}{20}$$

40 va 20 ning eng kichik umumiy karralisi 40 ga teng. \frac{137}{40} va \frac{51}{20} ni 40 maxraj bilan kasrlarga aylantirib oling.

$$\frac{137}{40}+\frac{102}{40}$$

\frac{137}{40} va \frac{102}{40} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{137+102}{40}$$

239 olish uchun 137 va 102'ni qo'shing.

$$\frac{239}{40}$$

Omil

$$\frac{239}{2 ^ {3} \cdot 5} = 5\frac{39}{40} = 5,975$$