-1/4+5/6+2/3+1/2 eching

$$- \frac { 1 } { 4 } + \frac { 5 } { 6 } + \frac { 2 } { 3 } + \frac { 1 } { 2 }$$

Baholash

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

Yechim qadamlari

4 va 6 ning eng kichik umumiy karralisi 12 ga teng. -\frac{1}{4} va \frac{5}{6} ni 12 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{3}{12}+\frac{10}{12}+\frac{2}{3}+\frac{1}{2}$$

-\frac{3}{12} va \frac{10}{12} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-3+10}{12}+\frac{2}{3}+\frac{1}{2}$$

7 olish uchun -3 va 10'ni qo'shing.

$$\frac{7}{12}+\frac{2}{3}+\frac{1}{2}$$

12 va 3 ning eng kichik umumiy karralisi 12 ga teng. \frac{7}{12} va \frac{2}{3} ni 12 maxraj bilan kasrlarga aylantirib oling.

$$\frac{7}{12}+\frac{8}{12}+\frac{1}{2}$$

\frac{7}{12} va \frac{8}{12} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{7+8}{12}+\frac{1}{2}$$

15 olish uchun 7 va 8'ni qo'shing.

$$\frac{15}{12}+\frac{1}{2}$$

\frac{15}{12} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{5}{4}+\frac{1}{2}$$

4 va 2 ning eng kichik umumiy karralisi 4 ga teng. \frac{5}{4} va \frac{1}{2} ni 4 maxraj bilan kasrlarga aylantirib oling.

$$\frac{5}{4}+\frac{2}{4}$$

\frac{5}{4} va \frac{2}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{5+2}{4}$$

7 olish uchun 5 va 2'ni qo'shing.

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

Omil

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