108*(2/3-3/4+7/9) eching

$$108 \times ( \frac { 2 } { 3 } - \frac { 3 } { 4 } + \frac { 7 } { 9 } )$$

Baholash

$$75$$

Yechim qadamlari

3 va 4 ning eng kichik umumiy karralisi 12 ga teng. \frac{2}{3} va \frac{3}{4} ni 12 maxraj bilan kasrlarga aylantirib oling.

$$108\left(\frac{8}{12}-\frac{9}{12}+\frac{7}{9}\right)$$

\frac{8}{12} va \frac{9}{12} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$108\left(\frac{8-9}{12}+\frac{7}{9}\right)$$

-1 olish uchun 8 dan 9 ni ayirish.

$$108\left(-\frac{1}{12}+\frac{7}{9}\right)$$

12 va 9 ning eng kichik umumiy karralisi 36 ga teng. -\frac{1}{12} va \frac{7}{9} ni 36 maxraj bilan kasrlarga aylantirib oling.

$$108\left(-\frac{3}{36}+\frac{28}{36}\right)$$

-\frac{3}{36} va \frac{28}{36} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$108\times \frac{-3+28}{36}$$

25 olish uchun -3 va 28'ni qo'shing.

$$108\times \frac{25}{36}$$

108\times \frac{25}{36} ni yagona kasrga aylantiring.

$$\frac{108\times 25}{36}$$

2700 hosil qilish uchun 108 va 25 ni ko'paytirish.

$$\frac{2700}{36}$$

75 ni olish uchun 2700 ni 36 ga bo‘ling.

$$75$$

Omil

$$3\times 5^{2}$$