(3-2/3)(1-5/7) eching

$$( 3 - \frac { 2 } { 3 } ) ( 1 - \frac { 5 } { 7 } )$$

Baholash

$$\frac{2}{3}\approx 0,666666667$$

Yechim qadamlari

3 ni \frac{9}{3} kasrga o‘giring.

$$\left(\frac{9}{3}-\frac{2}{3}\right)\left(1-\frac{5}{7}\right)$$

\frac{9}{3} va \frac{2}{3} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{9-2}{3}\left(1-\frac{5}{7}\right)$$

7 olish uchun 9 dan 2 ni ayirish.

$$\frac{7}{3}\left(1-\frac{5}{7}\right)$$

1 ni \frac{7}{7} kasrga o‘giring.

$$\frac{7}{3}\left(\frac{7}{7}-\frac{5}{7}\right)$$

\frac{7}{7} va \frac{5}{7} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{7}{3}\times \frac{7-5}{7}$$

2 olish uchun 7 dan 5 ni ayirish.

$$\frac{7}{3}\times \frac{2}{7}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{7}{3} ni \frac{2}{7} ga ko‘paytiring.

$$\frac{7\times 2}{3\times 7}$$

Surat va maxrajdagi ikkala 7 ni qisqartiring.

$$\frac{2}{3}$$

Omil

$$\frac{2}{3} = 0,6666666666666666$$