(21/2-3/4)4/7 eching

$$( 2 \frac { 1 } { 2 } - \frac { 3 } { 4 } ) \frac { 4 } { 7 }$$

Baholash

$$1$$

Yechim qadamlari

4 hosil qilish uchun 2 va 2 ni ko'paytirish.

$$\left(\frac{4+1}{2}-\frac{3}{4}\right)\times \frac{4}{7}$$

5 olish uchun 4 va 1'ni qo'shing.

$$\left(\frac{5}{2}-\frac{3}{4}\right)\times \frac{4}{7}$$

2 va 4 ning eng kichik umumiy karralisi 4 ga teng. \frac{5}{2} va \frac{3}{4} ni 4 maxraj bilan kasrlarga aylantirib oling.

$$\left(\frac{10}{4}-\frac{3}{4}\right)\times \frac{4}{7}$$

\frac{10}{4} va \frac{3}{4} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{10-3}{4}\times \frac{4}{7}$$

7 olish uchun 10 dan 3 ni ayirish.

$$\frac{7}{4}\times \frac{4}{7}$$

\frac{7}{4} va uning teskari kasrini \frac{4}{7} ni qisqartiring.

$$1$$

Omil

$$1$$