76/7-52/9 eching

$$7 \frac { 6 } { 7 } - 5 \frac { 2 } { 9 }$$

Baholash

$$\frac{166}{63}\approx 2,634920635$$

Yechim qadamlari

49 hosil qilish uchun 7 va 7 ni ko'paytirish.

$$\frac{49+6}{7}-\frac{5\times 9+2}{9}$$

55 olish uchun 49 va 6'ni qo'shing.

$$\frac{55}{7}-\frac{5\times 9+2}{9}$$

45 hosil qilish uchun 5 va 9 ni ko'paytirish.

$$\frac{55}{7}-\frac{45+2}{9}$$

47 olish uchun 45 va 2'ni qo'shing.

$$\frac{55}{7}-\frac{47}{9}$$

7 va 9 ning eng kichik umumiy karralisi 63 ga teng. \frac{55}{7} va \frac{47}{9} ni 63 maxraj bilan kasrlarga aylantirib oling.

$$\frac{495}{63}-\frac{329}{63}$$

\frac{495}{63} va \frac{329}{63} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{495-329}{63}$$

166 olish uchun 495 dan 329 ni ayirish.

$$\frac{166}{63}$$

Omil

$$\frac{2 \cdot 83}{3 ^ {2} \cdot 7} = 2\frac{40}{63} = 2,634920634920635$$