(-9/10)*(5/6-11/9) eching

$$( - \frac { 9 } { 10 } ) \times ( \frac { 5 } { 6 } - 1 \frac { 1 } { 9 } )$$

Baholash

$$\frac{1}{4}=0,25$$

Yechim qadamlari

9 hosil qilish uchun 1 va 9 ni ko'paytirish.

$$-\frac{9}{10}\left(\frac{5}{6}-\frac{9+1}{9}\right)$$

10 olish uchun 9 va 1'ni qo'shing.

$$-\frac{9}{10}\left(\frac{5}{6}-\frac{10}{9}\right)$$

6 va 9 ning eng kichik umumiy karralisi 18 ga teng. \frac{5}{6} va \frac{10}{9} ni 18 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{9}{10}\left(\frac{15}{18}-\frac{20}{18}\right)$$

\frac{15}{18} va \frac{20}{18} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$-\frac{9}{10}\times \frac{15-20}{18}$$

-5 olish uchun 15 dan 20 ni ayirish.

$$-\frac{9}{10}\left(-\frac{5}{18}\right)$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali -\frac{9}{10} ni -\frac{5}{18} ga ko‘paytiring.

$$\frac{-9\left(-5\right)}{10\times 18}$$

\frac{-9\left(-5\right)}{10\times 18} kasridagi ko‘paytirishlarni bajaring.

$$\frac{45}{180}$$

\frac{45}{180} ulushini 45 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{1}{4}$$

Omil

$$\frac{1}{2 ^ {2}} = 0,25$$