(2+1/4)*(6-1/30)= eching

$$( 2 + \frac { 1 } { 4 } ) \times ( 6 - \frac { 1 } { 30 } ) =$$

Baholash

$$\frac{537}{40}=13,425$$

Yechim qadamlari

2 ni \frac{8}{4} kasrga o‘giring.

$$\left(\frac{8}{4}+\frac{1}{4}\right)\left(6-\frac{1}{30}\right)$$

\frac{8}{4} va \frac{1}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{8+1}{4}\left(6-\frac{1}{30}\right)$$

9 olish uchun 8 va 1'ni qo'shing.

$$\frac{9}{4}\left(6-\frac{1}{30}\right)$$

6 ni \frac{180}{30} kasrga o‘giring.

$$\frac{9}{4}\left(\frac{180}{30}-\frac{1}{30}\right)$$

\frac{180}{30} va \frac{1}{30} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{9}{4}\times \frac{180-1}{30}$$

179 olish uchun 180 dan 1 ni ayirish.

$$\frac{9}{4}\times \frac{179}{30}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{9}{4} ni \frac{179}{30} ga ko‘paytiring.

$$\frac{9\times 179}{4\times 30}$$

\frac{9\times 179}{4\times 30} kasridagi ko‘paytirishlarni bajaring.

$$\frac{1611}{120}$$

\frac{1611}{120} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{537}{40}$$

Omil

$$\frac{3 \cdot 179}{2 ^ {3} \cdot 5} = 13\frac{17}{40} = 13,425$$