2/5*25/20*8/5=? eching

$$\frac { 2 } { 5 } \times \frac { 25 } { 20 } \times \frac { 8 } { 5 } = ?$$

Baholash

$$\frac{4}{5}=0,8$$

Yechim qadamlari

\frac{25}{20} ulushini 5 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{2}{5}\times \frac{5}{4}\times \frac{8}{5}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{2}{5} ni \frac{5}{4} ga ko‘paytiring.

$$\frac{2\times 5}{5\times 4}\times \frac{8}{5}$$

Surat va maxrajdagi ikkala 5 ni qisqartiring.

$$\frac{2}{4}\times \frac{8}{5}$$

\frac{2}{4} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{1}{2}\times \frac{8}{5}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{1}{2} ni \frac{8}{5} ga ko‘paytiring.

$$\frac{1\times 8}{2\times 5}$$

\frac{1\times 8}{2\times 5} kasridagi ko‘paytirishlarni bajaring.

$$\frac{8}{10}$$

\frac{8}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{4}{5}$$

Omil

$$\frac{2 ^ {2}}{5} = 0,8$$