31/2div11/4 eching

$$3 \frac { 1 } { 2 } \div 1 \frac { 1 } { 4 }$$

Baholash

$$\frac{14}{5}=2,8$$

Yechim qadamlari

\frac{3\times 2+1}{2} ni \frac{1\times 4+1}{4} ga bo'lish \frac{3\times 2+1}{2} ga k'paytirish \frac{1\times 4+1}{4} ga qaytarish.

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

Surat va maxrajdagi ikkala 2 ni qisqartiring.

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

6 hosil qilish uchun 2 va 3 ni ko'paytirish.

$$\frac{2\left(1+6\right)}{1+4}$$

7 olish uchun 1 va 6'ni qo'shing.

$$\frac{2\times 7}{1+4}$$

14 hosil qilish uchun 2 va 7 ni ko'paytirish.

$$\frac{14}{1+4}$$

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

$$\frac{14}{5}$$

Omil

$$\frac{2 \cdot 7}{5} = 2\frac{4}{5} = 2,8$$