1/4+2/5/frac{3{5}-1/2}= eching

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

Baholash

$$\frac{13}{2}=6,5$$

Yechim qadamlari

4 va 5 ning eng kichik umumiy karralisi 20 ga teng. \frac{1}{4} va \frac{2}{5} ni 20 maxraj bilan kasrlarga aylantirib oling.

$$\frac{\frac{5}{20}+\frac{8}{20}}{\frac{3}{5}-\frac{1}{2}}$$

\frac{5}{20} va \frac{8}{20} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{\frac{5+8}{20}}{\frac{3}{5}-\frac{1}{2}}$$

13 olish uchun 5 va 8'ni qo'shing.

$$\frac{\frac{13}{20}}{\frac{3}{5}-\frac{1}{2}}$$

5 va 2 ning eng kichik umumiy karralisi 10 ga teng. \frac{3}{5} va \frac{1}{2} ni 10 maxraj bilan kasrlarga aylantirib oling.

$$\frac{\frac{13}{20}}{\frac{6}{10}-\frac{5}{10}}$$

\frac{6}{10} va \frac{5}{10} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{\frac{13}{20}}{\frac{6-5}{10}}$$

1 olish uchun 6 dan 5 ni ayirish.

$$\frac{\frac{13}{20}}{\frac{1}{10}}$$

\frac{13}{20} ni \frac{1}{10} ga bo'lish \frac{13}{20} ga k'paytirish \frac{1}{10} ga qaytarish.

$$\frac{13}{20}\times 10$$

\frac{13}{20}\times 10 ni yagona kasrga aylantiring.

$$\frac{13\times 10}{20}$$

130 hosil qilish uchun 13 va 10 ni ko'paytirish.

$$\frac{130}{20}$$

\frac{130}{20} ulushini 10 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{13}{2}$$

Omil

$$\frac{13}{2} = 6\frac{1}{2} = 6,5$$