(3/5-2/10)*(3/5+2/10)= eching

$$( \frac { 3 } { 5 } - \frac { 2 } { 10 } ) \cdot ( \frac { 3 } { 5 } + \frac { 2 } { 10 } ) =$$

Baholash

$$\frac{8}{25}=0,32$$

Yechim qadamlari

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

$$\left(\frac{3}{5}-\frac{1}{5}\right)\left(\frac{3}{5}+\frac{2}{10}\right)$$

\frac{3}{5} va \frac{1}{5} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{3-1}{5}\left(\frac{3}{5}+\frac{2}{10}\right)$$

2 olish uchun 3 dan 1 ni ayirish.

$$\frac{2}{5}\left(\frac{3}{5}+\frac{2}{10}\right)$$

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

$$\frac{2}{5}\left(\frac{3}{5}+\frac{1}{5}\right)$$

\frac{3}{5} va \frac{1}{5} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{2}{5}\times \frac{3+1}{5}$$

4 olish uchun 3 va 1'ni qo'shing.

$$\frac{2}{5}\times \frac{4}{5}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{2}{5} ni \frac{4}{5} ga ko‘paytiring.

$$\frac{2\times 4}{5\times 5}$$

\frac{2\times 4}{5\times 5} kasridagi ko‘paytirishlarni bajaring.

$$\frac{8}{25}$$

Omil

$$\frac{2 ^ {3}}{5 ^ {2}} = 0,32$$