3/7(2)-5/14(4)= eching

$$\frac { 3 } { 7 } ( 2 ) - \frac { 5 } { 14 } ( 4 ) =$$

Baholash

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

Yechim qadamlari

\frac{3}{7}\times 2 ni yagona kasrga aylantiring.

$$\frac{3\times 2}{7}-\frac{5}{14}\times 4$$

6 hosil qilish uchun 3 va 2 ni ko'paytirish.

$$\frac{6}{7}-\frac{5}{14}\times 4$$

\frac{5}{14}\times 4 ni yagona kasrga aylantiring.

$$\frac{6}{7}-\frac{5\times 4}{14}$$

20 hosil qilish uchun 5 va 4 ni ko'paytirish.

$$\frac{6}{7}-\frac{20}{14}$$

\frac{20}{14} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{6}{7}-\frac{10}{7}$$

\frac{6}{7} va \frac{10}{7} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{6-10}{7}$$

-4 olish uchun 6 dan 10 ni ayirish.

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

Omil

$$-\frac{4}{7} = -0,5714285714285714$$