(7/4-5/6)*(4+4/11)= eching

$$( \frac { 7 } { 4 } - \frac { 5 } { 6 } ) \cdot ( 4 + \frac { 4 } { 11 } ) =$$

Baholash

$$4$$

Yechim qadamlari

4 va 6 ning eng kichik umumiy karralisi 12 ga teng. \frac{7}{4} va \frac{5}{6} ni 12 maxraj bilan kasrlarga aylantirib oling.

$$\left(\frac{21}{12}-\frac{10}{12}\right)\left(4+\frac{4}{11}\right)$$

\frac{21}{12} va \frac{10}{12} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{21-10}{12}\left(4+\frac{4}{11}\right)$$

11 olish uchun 21 dan 10 ni ayirish.

$$\frac{11}{12}\left(4+\frac{4}{11}\right)$$

4 ni \frac{44}{11} kasrga o‘giring.

$$\frac{11}{12}\left(\frac{44}{11}+\frac{4}{11}\right)$$

\frac{44}{11} va \frac{4}{11} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{11}{12}\times \frac{44+4}{11}$$

48 olish uchun 44 va 4'ni qo'shing.

$$\frac{11}{12}\times \frac{48}{11}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{11}{12} ni \frac{48}{11} ga ko‘paytiring.

$$\frac{11\times 48}{12\times 11}$$

Surat va maxrajdagi ikkala 11 ni qisqartiring.

$$\frac{48}{12}$$

4 ni olish uchun 48 ni 12 ga bo‘ling.

$$4$$

Omil

$$2^{2}$$