-2/3+1/4-(-3/4) eching

$$- \frac { 2 } { 3 } + \frac { 1 } { 4 } - ( - \frac { 3 } { 4 } )$$

Baholash

$$\frac{1}{3}\approx 0,333333333$$

Yechim qadamlari

3 va 4 ning eng kichik umumiy karralisi 12 ga teng. -\frac{2}{3} va \frac{1}{4} ni 12 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{8}{12}+\frac{3}{12}-\left(-\frac{3}{4}\right)$$

-\frac{8}{12} va \frac{3}{12} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-8+3}{12}-\left(-\frac{3}{4}\right)$$

-5 olish uchun -8 va 3'ni qo'shing.

$$-\frac{5}{12}-\left(-\frac{3}{4}\right)$$

-\frac{3}{4} ning teskarisi \frac{3}{4} ga teng.

$$-\frac{5}{12}+\frac{3}{4}$$

12 va 4 ning eng kichik umumiy karralisi 12 ga teng. -\frac{5}{12} va \frac{3}{4} ni 12 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{5}{12}+\frac{9}{12}$$

-\frac{5}{12} va \frac{9}{12} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-5+9}{12}$$

4 olish uchun -5 va 9'ni qo'shing.

$$\frac{4}{12}$$

\frac{4}{12} ulushini 4 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{1}{3}$$

Omil

$$\frac{1}{3} = 0,3333333333333333$$