42/3*21/4 eching

$$4 \frac { 2 } { 3 } \times 2 \frac { 1 } { 4 }$$

Baholash

$$\frac{21}{2}=10,5$$

Yechim qadamlari

12 hosil qilish uchun 4 va 3 ni ko'paytirish.

$$\frac{12+2}{3}\times \frac{2\times 4+1}{4}$$

14 olish uchun 12 va 2'ni qo'shing.

$$\frac{14}{3}\times \frac{2\times 4+1}{4}$$

8 hosil qilish uchun 2 va 4 ni ko'paytirish.

$$\frac{14}{3}\times \frac{8+1}{4}$$

9 olish uchun 8 va 1'ni qo'shing.

$$\frac{14}{3}\times \frac{9}{4}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{14}{3} ni \frac{9}{4} ga ko‘paytiring.

$$\frac{14\times 9}{3\times 4}$$

\frac{14\times 9}{3\times 4} kasridagi ko‘paytirishlarni bajaring.

$$\frac{126}{12}$$

\frac{126}{12} ulushini 6 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{21}{2}$$

Omil

$$\frac{3 \cdot 7}{2} = 10\frac{1}{2} = 10,5$$