2-(5/2+3/4)-(1-4/5)-3/4 eching

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

Baholash

$$-\frac{11}{5}=-2,2$$

Yechim qadamlari

2 va 4 ning eng kichik umumiy karralisi 4 ga teng. \frac{5}{2} va \frac{3}{4} ni 4 maxraj bilan kasrlarga aylantirib oling.

$$2-\left(\frac{10}{4}+\frac{3}{4}\right)-\left(1-\frac{4}{5}\right)-\frac{3}{4}$$

\frac{10}{4} va \frac{3}{4} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$2-\frac{10+3}{4}-\left(1-\frac{4}{5}\right)-\frac{3}{4}$$

13 olish uchun 10 va 3'ni qo'shing.

$$2-\frac{13}{4}-\left(1-\frac{4}{5}\right)-\frac{3}{4}$$

2 ni \frac{8}{4} kasrga o‘giring.

$$\frac{8}{4}-\frac{13}{4}-\left(1-\frac{4}{5}\right)-\frac{3}{4}$$

\frac{8}{4} va \frac{13}{4} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{8-13}{4}-\left(1-\frac{4}{5}\right)-\frac{3}{4}$$

-5 olish uchun 8 dan 13 ni ayirish.

$$-\frac{5}{4}-\left(1-\frac{4}{5}\right)-\frac{3}{4}$$

1 ni \frac{5}{5} kasrga o‘giring.

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

\frac{5}{5} va \frac{4}{5} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

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

1 olish uchun 5 dan 4 ni ayirish.

$$-\frac{5}{4}-\frac{1}{5}-\frac{3}{4}$$

4 va 5 ning eng kichik umumiy karralisi 20 ga teng. -\frac{5}{4} va \frac{1}{5} ni 20 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{25}{20}-\frac{4}{20}-\frac{3}{4}$$

-\frac{25}{20} va \frac{4}{20} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{-25-4}{20}-\frac{3}{4}$$

-29 olish uchun -25 dan 4 ni ayirish.

$$-\frac{29}{20}-\frac{3}{4}$$

20 va 4 ning eng kichik umumiy karralisi 20 ga teng. -\frac{29}{20} va \frac{3}{4} ni 20 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{29}{20}-\frac{15}{20}$$

-\frac{29}{20} va \frac{15}{20} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{-29-15}{20}$$

-44 olish uchun -29 dan 15 ni ayirish.

$$\frac{-44}{20}$$

\frac{-44}{20} ulushini 4 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$-\frac{11}{5}$$

Omil

$$-\frac{11}{5} = -2\frac{1}{5} = -2,2$$