-54/7+25/14= eching

$$- 5 \frac { 4 } { 7 } + 2 \frac { 5 } { 14 } =$$

Baholash

$$-\frac{45}{14}\approx -3,214285714$$

Yechim qadamlari

35 hosil qilish uchun 5 va 7 ni ko'paytirish.

$$-\frac{35+4}{7}+\frac{2\times 14+5}{14}$$

39 olish uchun 35 va 4'ni qo'shing.

$$-\frac{39}{7}+\frac{2\times 14+5}{14}$$

28 hosil qilish uchun 2 va 14 ni ko'paytirish.

$$-\frac{39}{7}+\frac{28+5}{14}$$

33 olish uchun 28 va 5'ni qo'shing.

$$-\frac{39}{7}+\frac{33}{14}$$

7 va 14 ning eng kichik umumiy karralisi 14 ga teng. -\frac{39}{7} va \frac{33}{14} ni 14 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{78}{14}+\frac{33}{14}$$

-\frac{78}{14} va \frac{33}{14} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-78+33}{14}$$

-45 olish uchun -78 va 33'ni qo'shing.

$$-\frac{45}{14}$$

Omil

$$-\frac{45}{14} = -3\frac{3}{14} = -3,2142857142857144$$