0.2:27/25-2/3= eching

$$0.2 : \frac { 27 } { 25 } - \frac { 2 } { 3 } =$$

Baholash

$$-\frac{13}{27}\approx -0,481481481$$

Yechim qadamlari

0,2 ni \frac{27}{25} ga bo'lish 0,2 ga k'paytirish \frac{27}{25} ga qaytarish.

$$0,2\times \frac{25}{27}-\frac{2}{3}$$

0,2 o‘nlik raqamni uning \frac{2}{10} kasrga o‘giring. \frac{2}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{1}{5}\times \frac{25}{27}-\frac{2}{3}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{1}{5} ni \frac{25}{27} ga ko‘paytiring.

$$\frac{1\times 25}{5\times 27}-\frac{2}{3}$$

\frac{1\times 25}{5\times 27} kasridagi ko‘paytirishlarni bajaring.

$$\frac{25}{135}-\frac{2}{3}$$

\frac{25}{135} ulushini 5 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{5}{27}-\frac{2}{3}$$

27 va 3 ning eng kichik umumiy karralisi 27 ga teng. \frac{5}{27} va \frac{2}{3} ni 27 maxraj bilan kasrlarga aylantirib oling.

$$\frac{5}{27}-\frac{18}{27}$$

\frac{5}{27} va \frac{18}{27} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{5-18}{27}$$

-13 olish uchun 5 dan 18 ni ayirish.

$$-\frac{13}{27}$$

Omil

$$-\frac{13}{27} = -0,48148148148148145$$