2/5+1/6div(-5/9)-1/2 eching

$$\frac { 2 } { 5 } + \frac { 1 } { 6 } \div ( - \frac { 5 } { 9 } ) - \frac { 1 } { 2 }$$

Baholash

$$-\frac{2}{5}=-0,4$$

Yechim qadamlari

\frac{1}{6} ni -\frac{5}{9} ga bo'lish \frac{1}{6} ga k'paytirish -\frac{5}{9} ga qaytarish.

$$\frac{2}{5}+\frac{1}{6}\left(-\frac{9}{5}\right)-\frac{1}{2}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{1}{6} ni -\frac{9}{5} ga ko‘paytiring.

$$\frac{2}{5}+\frac{1\left(-9\right)}{6\times 5}-\frac{1}{2}$$

\frac{1\left(-9\right)}{6\times 5} kasridagi ko‘paytirishlarni bajaring.

$$\frac{2}{5}+\frac{-9}{30}-\frac{1}{2}$$

\frac{-9}{30} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{2}{5}-\frac{3}{10}-\frac{1}{2}$$

5 va 10 ning eng kichik umumiy karralisi 10 ga teng. \frac{2}{5} va \frac{3}{10} ni 10 maxraj bilan kasrlarga aylantirib oling.

$$\frac{4}{10}-\frac{3}{10}-\frac{1}{2}$$

\frac{4}{10} va \frac{3}{10} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{4-3}{10}-\frac{1}{2}$$

1 olish uchun 4 dan 3 ni ayirish.

$$\frac{1}{10}-\frac{1}{2}$$

10 va 2 ning eng kichik umumiy karralisi 10 ga teng. \frac{1}{10} va \frac{1}{2} ni 10 maxraj bilan kasrlarga aylantirib oling.

$$\frac{1}{10}-\frac{5}{10}$$

\frac{1}{10} va \frac{5}{10} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{1-5}{10}$$

-4 olish uchun 1 dan 5 ni ayirish.

$$\frac{-4}{10}$$

\frac{-4}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$-\frac{2}{5}$$

Omil

$$-\frac{2}{5} = -0,4$$