21div(13/16*(1-6/13)) eching

$$21 \div ( \frac{ 13 }{ 16 } \times (1- \frac{ 6 }{ 13 } ))$$

Baholash

$$48$$

Yechim qadamlari

1 ni \frac{13}{13} kasrga o‘giring.

$$\frac{21}{\frac{13}{16}\left(\frac{13}{13}-\frac{6}{13}\right)}$$

\frac{13}{13} va \frac{6}{13} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{21}{\frac{13}{16}\times \frac{13-6}{13}}$$

7 olish uchun 13 dan 6 ni ayirish.

$$\frac{21}{\frac{13}{16}\times \frac{7}{13}}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{13}{16} ni \frac{7}{13} ga ko‘paytiring.

$$\frac{21}{\frac{13\times 7}{16\times 13}}$$

Surat va maxrajdagi ikkala 13 ni qisqartiring.

$$\frac{21}{\frac{7}{16}}$$

21 ni \frac{7}{16} ga bo'lish 21 ga k'paytirish \frac{7}{16} ga qaytarish.

$$21\times \frac{16}{7}$$

21\times \frac{16}{7} ni yagona kasrga aylantiring.

$$\frac{21\times 16}{7}$$

336 hosil qilish uchun 21 va 16 ni ko'paytirish.

$$\frac{336}{7}$$

48 ni olish uchun 336 ni 7 ga bo‘ling.

$$48$$

Omil

$$2^{4}\times 3$$