78/63-12/21-5/9 eching

$$\frac { 78 } { 63 } - \frac { 12 } { 21 } - \frac { 5 } { 9 }$$

Baholash

$$\frac{1}{9}\approx 0,111111111$$

Yechim qadamlari

\frac{78}{63} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{26}{21}-\frac{12}{21}-\frac{5}{9}$$

\frac{26}{21} va \frac{12}{21} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{26-12}{21}-\frac{5}{9}$$

14 olish uchun 26 dan 12 ni ayirish.

$$\frac{14}{21}-\frac{5}{9}$$

\frac{14}{21} ulushini 7 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{2}{3}-\frac{5}{9}$$

3 va 9 ning eng kichik umumiy karralisi 9 ga teng. \frac{2}{3} va \frac{5}{9} ni 9 maxraj bilan kasrlarga aylantirib oling.

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

\frac{6}{9} va \frac{5}{9} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

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

1 olish uchun 6 dan 5 ni ayirish.

$$\frac{1}{9}$$

Omil

$$\frac{1}{3 ^ {2}} = 0,1111111111111111$$