-2/7-1/3+1 eching

$$\frac{ \frac{ -2 }{ 7 } -1 }{ 3 } +1$$

Baholash

$$\frac{4}{7}\approx 0,571428571$$

Yechim qadamlari

\frac{-2}{7} kasri manfiy belgini olib tashlash bilan -\frac{2}{7} sifatida qayta yozilishi mumkin.

$$\frac{-\frac{2}{7}-1}{3}+1$$

1 ni \frac{7}{7} kasrga o‘giring.

$$\frac{-\frac{2}{7}-\frac{7}{7}}{3}+1$$

-\frac{2}{7} va \frac{7}{7} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{\frac{-2-7}{7}}{3}+1$$

-9 olish uchun -2 dan 7 ni ayirish.

$$\frac{-\frac{9}{7}}{3}+1$$

\frac{-\frac{9}{7}}{3} ni yagona kasrga aylantiring.

$$\frac{-9}{7\times 3}+1$$

21 hosil qilish uchun 7 va 3 ni ko'paytirish.

$$\frac{-9}{21}+1$$

\frac{-9}{21} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$-\frac{3}{7}+1$$

1 ni \frac{7}{7} kasrga o‘giring.

$$-\frac{3}{7}+\frac{7}{7}$$

-\frac{3}{7} va \frac{7}{7} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-3+7}{7}$$

4 olish uchun -3 va 7'ni qo'shing.

$$\frac{4}{7}$$

Omil

$$\frac{2 ^ {2}}{7} = 0,5714285714285714$$