12/9*34/7 eching

$$1 \frac { 2 } { 9 } \cdot 3 \frac { 4 } { 7 }$$

Baholash

$$\frac{275}{63}\approx 4,365079365$$

Yechim qadamlari

9 hosil qilish uchun 1 va 9 ni ko'paytirish.

$$\frac{9+2}{9}\times \frac{3\times 7+4}{7}$$

11 olish uchun 9 va 2'ni qo'shing.

$$\frac{11}{9}\times \frac{3\times 7+4}{7}$$

21 hosil qilish uchun 3 va 7 ni ko'paytirish.

$$\frac{11}{9}\times \frac{21+4}{7}$$

25 olish uchun 21 va 4'ni qo'shing.

$$\frac{11}{9}\times \frac{25}{7}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{11}{9} ni \frac{25}{7} ga ko‘paytiring.

$$\frac{11\times 25}{9\times 7}$$

\frac{11\times 25}{9\times 7} kasridagi ko‘paytirishlarni bajaring.

$$\frac{275}{63}$$

Omil

$$\frac{5 ^ {2} \cdot 11}{3 ^ {2} \cdot 7} = 4\frac{23}{63} = 4,365079365079365$$