31/2*5*3/7 eching

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

Baholash

$$\frac{15}{2}=7,5$$

Yechim qadamlari

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

$$\frac{6+1}{2}\times 5\times \frac{3}{7}$$

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

$$\frac{7}{2}\times 5\times \frac{3}{7}$$

\frac{7}{2}\times 5 ni yagona kasrga aylantiring.

$$\frac{7\times 5}{2}\times \frac{3}{7}$$

35 hosil qilish uchun 7 va 5 ni ko'paytirish.

$$\frac{35}{2}\times \frac{3}{7}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{35}{2} ni \frac{3}{7} ga ko‘paytiring.

$$\frac{35\times 3}{2\times 7}$$

\frac{35\times 3}{2\times 7} kasridagi ko‘paytirishlarni bajaring.

$$\frac{105}{14}$$

\frac{105}{14} ulushini 7 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{15}{2}$$

Omil

$$\frac{3 \cdot 5}{2} = 7\frac{1}{2} = 7,5$$