|21/2-3/4|*4/7 eching

$$| 2 \frac { 1 } { 2 } - \frac { 3 } { 4 } | \cdot \frac { 4 } { 7 }$$

Baholash

$$1$$

Yechim qadamlari

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

$$|\frac{4+1}{2}-\frac{3}{4}|\times \frac{4}{7}$$

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

$$|\frac{5}{2}-\frac{3}{4}|\times \frac{4}{7}$$

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.

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

\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.

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

a haqiqiy sonining mutloq qiymati qachon a\geq 0 bo‘lganda, a yoki qachon a<0 bo‘lganda -a. \frac{7}{4} ning mutloq qiymati \frac{7}{4} ga teng.

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

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

$$1$$

Omil

$$1$$