2/3-1/6+7/4-1/2= eching

$$\frac { 2 } { 3 } - \frac { 1 } { 6 } + \frac { 7 } { 4 } - \frac { 1 } { 2 } =$$

Baholash

$$\frac{7}{4}=1,75$$

Yechim qadamlari

3 va 6 ning eng kichik umumiy karralisi 6 ga teng. \frac{2}{3} va \frac{1}{6} ni 6 maxraj bilan kasrlarga aylantirib oling.

$$\frac{4}{6}-\frac{1}{6}+\frac{7}{4}-\frac{1}{2}$$

\frac{4}{6} va \frac{1}{6} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{4-1}{6}+\frac{7}{4}-\frac{1}{2}$$

3 olish uchun 4 dan 1 ni ayirish.

$$\frac{3}{6}+\frac{7}{4}-\frac{1}{2}$$

\frac{3}{6} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{1}{2}+\frac{7}{4}-\frac{1}{2}$$

2 va 4 ning eng kichik umumiy karralisi 4 ga teng. \frac{1}{2} va \frac{7}{4} ni 4 maxraj bilan kasrlarga aylantirib oling.

$$\frac{2}{4}+\frac{7}{4}-\frac{1}{2}$$

\frac{2}{4} va \frac{7}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{2+7}{4}-\frac{1}{2}$$

9 olish uchun 2 va 7'ni qo'shing.

$$\frac{9}{4}-\frac{1}{2}$$

4 va 2 ning eng kichik umumiy karralisi 4 ga teng. \frac{9}{4} va \frac{1}{2} ni 4 maxraj bilan kasrlarga aylantirib oling.

$$\frac{9}{4}-\frac{2}{4}$$

\frac{9}{4} va \frac{2}{4} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{9-2}{4}$$

7 olish uchun 9 dan 2 ni ayirish.

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

Omil

$$\frac{7}{2 ^ {2}} = 1\frac{3}{4} = 1,75$$