41/4div21/2 eching

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

Baholash

$$\frac{17}{10}=1,7$$

Yechim qadamlari

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

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

Surat va maxrajdagi ikkala 2 ni qisqartiring.

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

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

$$\frac{1+16}{2\left(1+2\times 2\right)}$$

17 olish uchun 1 va 16'ni qo'shing.

$$\frac{17}{2\left(1+2\times 2\right)}$$

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

$$\frac{17}{2\left(1+4\right)}$$

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

$$\frac{17}{2\times 5}$$

10 hosil qilish uchun 2 va 5 ni ko'paytirish.

$$\frac{17}{10}$$

Omil

$$\frac{17}{2 \cdot 5} = 1\frac{7}{10} = 1,7$$