21/3div5/7 eching

$$2 \frac { 1 } { 3 } \div \frac { 5 } { 7 }$$

Baholash

$$\frac{49}{15}\approx 3,266666667$$

Yechim qadamlari

\frac{2\times 3+1}{3} ni \frac{5}{7} ga bo'lish \frac{2\times 3+1}{3} ga k'paytirish \frac{5}{7} ga qaytarish.

$$\frac{\left(2\times 3+1\right)\times 7}{3\times 5}$$

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

$$\frac{\left(6+1\right)\times 7}{3\times 5}$$

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

$$\frac{7\times 7}{3\times 5}$$

49 hosil qilish uchun 7 va 7 ni ko'paytirish.

$$\frac{49}{3\times 5}$$

15 hosil qilish uchun 3 va 5 ni ko'paytirish.

$$\frac{49}{15}$$

Omil

$$\frac{7 ^ {2}}{3 \cdot 5} = 3\frac{4}{15} = 3,2666666666666666$$