2*(13+7)+2(1/2*2*22/7*35/10 eching

$$2 \times (13+7)+2( \frac{ 1 }{ 2 } \times 2 \times \frac{ 22 }{ 7 } \times \frac{ 35 }{ 10 }$$

Baholash

$$62$$

Yechim qadamlari

20 olish uchun 13 va 7'ni qo'shing.

$$2\times 20+2\times \frac{1}{2}\times 2\times \frac{22}{7}\times \frac{35}{10}$$

40 hosil qilish uchun 2 va 20 ni ko'paytirish.

$$40+2\times \frac{1}{2}\times 2\times \frac{22}{7}\times \frac{35}{10}$$

2 va 2 ni qisqartiring.

$$40+2\times \frac{22}{7}\times \frac{35}{10}$$

2\times \frac{22}{7} ni yagona kasrga aylantiring.

$$40+\frac{2\times 22}{7}\times \frac{35}{10}$$

44 hosil qilish uchun 2 va 22 ni ko'paytirish.

$$40+\frac{44}{7}\times \frac{35}{10}$$

\frac{35}{10} ulushini 5 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$40+\frac{44}{7}\times \frac{7}{2}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{44}{7} ni \frac{7}{2} ga ko‘paytiring.

$$40+\frac{44\times 7}{7\times 2}$$

Surat va maxrajdagi ikkala 7 ni qisqartiring.

$$40+\frac{44}{2}$$

22 ni olish uchun 44 ni 2 ga bo‘ling.

$$40+22$$

62 olish uchun 40 va 22'ni qo'shing.

$$62$$

Omil

$$2\times 31$$