(1-1/10)div(1/10+1/8) eching

$$( 1 - \frac { 1 } { 10 } ) \div ( \frac { 1 } { 10 } + \frac { 1 } { 8 } )$$

Baholash

$$4$$

Yechim qadamlari

1 ni \frac{10}{10} kasrga o‘giring.

$$\frac{\frac{10}{10}-\frac{1}{10}}{\frac{1}{10}+\frac{1}{8}}$$

\frac{10}{10} va \frac{1}{10} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{\frac{10-1}{10}}{\frac{1}{10}+\frac{1}{8}}$$

9 olish uchun 10 dan 1 ni ayirish.

$$\frac{\frac{9}{10}}{\frac{1}{10}+\frac{1}{8}}$$

10 va 8 ning eng kichik umumiy karralisi 40 ga teng. \frac{1}{10} va \frac{1}{8} ni 40 maxraj bilan kasrlarga aylantirib oling.

$$\frac{\frac{9}{10}}{\frac{4}{40}+\frac{5}{40}}$$

\frac{4}{40} va \frac{5}{40} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{\frac{9}{10}}{\frac{4+5}{40}}$$

9 olish uchun 4 va 5'ni qo'shing.

$$\frac{\frac{9}{10}}{\frac{9}{40}}$$

\frac{9}{10} ni \frac{9}{40} ga bo'lish \frac{9}{10} ga k'paytirish \frac{9}{40} ga qaytarish.

$$\frac{9}{10}\times \frac{40}{9}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{9}{10} ni \frac{40}{9} ga ko‘paytiring.

$$\frac{9\times 40}{10\times 9}$$

Surat va maxrajdagi ikkala 9 ni qisqartiring.

$$\frac{40}{10}$$

4 ni olish uchun 40 ni 10 ga bo‘ling.

$$4$$

Omil

$$2^{2}$$