-7/8-(-5/6)+1/3 eching

$$- \frac { 7 } { 8 } - ( - \frac { 5 } { 6 } ) + \frac { 1 } { 3 }$$

Baholash

$$\frac{7}{24}\approx 0,291666667$$

Yechim qadamlari

-\frac{5}{6} ning teskarisi \frac{5}{6} ga teng.

$$-\frac{7}{8}+\frac{5}{6}+\frac{1}{3}$$

8 va 6 ning eng kichik umumiy karralisi 24 ga teng. -\frac{7}{8} va \frac{5}{6} ni 24 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{21}{24}+\frac{20}{24}+\frac{1}{3}$$

-\frac{21}{24} va \frac{20}{24} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-21+20}{24}+\frac{1}{3}$$

-1 olish uchun -21 va 20'ni qo'shing.

$$-\frac{1}{24}+\frac{1}{3}$$

24 va 3 ning eng kichik umumiy karralisi 24 ga teng. -\frac{1}{24} va \frac{1}{3} ni 24 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{1}{24}+\frac{8}{24}$$

-\frac{1}{24} va \frac{8}{24} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-1+8}{24}$$

7 olish uchun -1 va 8'ni qo'shing.

$$\frac{7}{24}$$

Omil

$$\frac{7}{2 ^ {3} \cdot 3} = 0,2916666666666667$$