19/4*42/25 eching

$$\frac{ 19 }{ 4 } \times 4 \frac{ 2 }{ 25 }$$

Baholash

$$\frac{969}{50}=19,38$$

Yechim qadamlari

100 hosil qilish uchun 4 va 25 ni ko'paytirish.

$$\frac{19}{4}\times \frac{100+2}{25}$$

102 olish uchun 100 va 2'ni qo'shing.

$$\frac{19}{4}\times \frac{102}{25}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{19}{4} ni \frac{102}{25} ga ko‘paytiring.

$$\frac{19\times 102}{4\times 25}$$

\frac{19\times 102}{4\times 25} kasridagi ko‘paytirishlarni bajaring.

$$\frac{1938}{100}$$

\frac{1938}{100} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{969}{50}$$

Omil

$$\frac{3 \cdot 17 \cdot 19}{2 \cdot 5 ^ {2}} = 19\frac{19}{50} = 19,38$$