3/8+1/10+1/10+1/30 eching

$$\frac { 3 } { 8 } + \frac { 1 } { 10 } + \frac { 1 } { 10 } + \frac { 1 } { 30 }$$

Baholash

$$\frac{73}{120}\approx 0,608333333$$

Yechim qadamlari

8 va 10 ning eng kichik umumiy karralisi 40 ga teng. \frac{3}{8} va \frac{1}{10} ni 40 maxraj bilan kasrlarga aylantirib oling.

$$\frac{15}{40}+\frac{4}{40}+\frac{1}{10}+\frac{1}{30}$$

\frac{15}{40} va \frac{4}{40} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{15+4}{40}+\frac{1}{10}+\frac{1}{30}$$

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

$$\frac{19}{40}+\frac{1}{10}+\frac{1}{30}$$

40 va 10 ning eng kichik umumiy karralisi 40 ga teng. \frac{19}{40} va \frac{1}{10} ni 40 maxraj bilan kasrlarga aylantirib oling.

$$\frac{19}{40}+\frac{4}{40}+\frac{1}{30}$$

\frac{19}{40} va \frac{4}{40} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{19+4}{40}+\frac{1}{30}$$

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

$$\frac{23}{40}+\frac{1}{30}$$

40 va 30 ning eng kichik umumiy karralisi 120 ga teng. \frac{23}{40} va \frac{1}{30} ni 120 maxraj bilan kasrlarga aylantirib oling.

$$\frac{69}{120}+\frac{4}{120}$$

\frac{69}{120} va \frac{4}{120} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{69+4}{120}$$

73 olish uchun 69 va 4'ni qo'shing.

$$\frac{73}{120}$$

Omil

$$\frac{73}{2 ^ {3} \cdot 3 \cdot 5} = 0,6083333333333333$$