151/2+72/3-91/9 eching

$$15 \frac{ 1 }{ 2 } +7 \frac{ 2 }{ 3 } -9 \frac{ 1 }{ 9 }$$

Baholash

$$\frac{253}{18}\approx 14,055555556$$

Yechim qadamlari

30 hosil qilish uchun 15 va 2 ni ko'paytirish.

$$\frac{30+1}{2}+\frac{7\times 3+2}{3}-\frac{9\times 9+1}{9}$$

31 olish uchun 30 va 1'ni qo'shing.

$$\frac{31}{2}+\frac{7\times 3+2}{3}-\frac{9\times 9+1}{9}$$

21 hosil qilish uchun 7 va 3 ni ko'paytirish.

$$\frac{31}{2}+\frac{21+2}{3}-\frac{9\times 9+1}{9}$$

23 olish uchun 21 va 2'ni qo'shing.

$$\frac{31}{2}+\frac{23}{3}-\frac{9\times 9+1}{9}$$

2 va 3 ning eng kichik umumiy karralisi 6 ga teng. \frac{31}{2} va \frac{23}{3} ni 6 maxraj bilan kasrlarga aylantirib oling.

$$\frac{93}{6}+\frac{46}{6}-\frac{9\times 9+1}{9}$$

\frac{93}{6} va \frac{46}{6} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{93+46}{6}-\frac{9\times 9+1}{9}$$

139 olish uchun 93 va 46'ni qo'shing.

$$\frac{139}{6}-\frac{9\times 9+1}{9}$$

81 hosil qilish uchun 9 va 9 ni ko'paytirish.

$$\frac{139}{6}-\frac{81+1}{9}$$

82 olish uchun 81 va 1'ni qo'shing.

$$\frac{139}{6}-\frac{82}{9}$$

6 va 9 ning eng kichik umumiy karralisi 18 ga teng. \frac{139}{6} va \frac{82}{9} ni 18 maxraj bilan kasrlarga aylantirib oling.

$$\frac{417}{18}-\frac{164}{18}$$

\frac{417}{18} va \frac{164}{18} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{417-164}{18}$$

253 olish uchun 417 dan 164 ni ayirish.

$$\frac{253}{18}$$

Omil

$$\frac{11 \cdot 23}{2 \cdot 3 ^ {2}} = 14\frac{1}{18} = 14,055555555555555$$