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

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

Baholash

$$1$$

Yechim qadamlari

3 va 5 ning eng kichik umumiy karralisi 15 ga teng. \frac{2}{3} va \frac{1}{5} ni 15 maxraj bilan kasrlarga aylantirib oling.

$$\frac{10}{15}-\frac{3}{15}+\frac{4}{3}-\frac{4}{5}$$

\frac{10}{15} va \frac{3}{15} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{10-3}{15}+\frac{4}{3}-\frac{4}{5}$$

7 olish uchun 10 dan 3 ni ayirish.

$$\frac{7}{15}+\frac{4}{3}-\frac{4}{5}$$

15 va 3 ning eng kichik umumiy karralisi 15 ga teng. \frac{7}{15} va \frac{4}{3} ni 15 maxraj bilan kasrlarga aylantirib oling.

$$\frac{7}{15}+\frac{20}{15}-\frac{4}{5}$$

\frac{7}{15} va \frac{20}{15} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{7+20}{15}-\frac{4}{5}$$

27 olish uchun 7 va 20'ni qo'shing.

$$\frac{27}{15}-\frac{4}{5}$$

\frac{27}{15} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{9}{5}-\frac{4}{5}$$

\frac{9}{5} va \frac{4}{5} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{9-4}{5}$$

5 olish uchun 9 dan 4 ni ayirish.

$$\frac{5}{5}$$

1 ni olish uchun 5 ni 5 ga bo‘ling.

$$1$$

Omil

$$1$$