42/7*11/9 eching

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

Baholash

$$\frac{100}{21}\approx 4,761904762$$

Yechim qadamlari

28 hosil qilish uchun 4 va 7 ni ko'paytirish.

$$\frac{28+2}{7}\times \frac{1\times 9+1}{9}$$

30 olish uchun 28 va 2'ni qo'shing.

$$\frac{30}{7}\times \frac{1\times 9+1}{9}$$

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

$$\frac{30}{7}\times \frac{9+1}{9}$$

10 olish uchun 9 va 1'ni qo'shing.

$$\frac{30}{7}\times \frac{10}{9}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{30}{7} ni \frac{10}{9} ga ko‘paytiring.

$$\frac{30\times 10}{7\times 9}$$

\frac{30\times 10}{7\times 9} kasridagi ko‘paytirishlarni bajaring.

$$\frac{300}{63}$$

\frac{300}{63} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{100}{21}$$

Omil

$$\frac{2 ^ {2} \cdot 5 ^ {2}}{3 \cdot 7} = 4\frac{16}{21} = 4,761904761904762$$