7/8*10/21*12/25 eching

$$\frac { 7 } { 8 } \times \frac { 10 } { 21 } \times \frac { 12 } { 25 }$$

Baholash

$$\frac{1}{5}=0,2$$

Yechim qadamlari

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{7}{8} ni \frac{10}{21} ga ko‘paytiring.

$$\frac{7\times 10}{8\times 21}\times \frac{12}{25}$$

\frac{7\times 10}{8\times 21} kasridagi ko‘paytirishlarni bajaring.

$$\frac{70}{168}\times \frac{12}{25}$$

\frac{70}{168} ulushini 14 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{5}{12}\times \frac{12}{25}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{5}{12} ni \frac{12}{25} ga ko‘paytiring.

$$\frac{5\times 12}{12\times 25}$$

Surat va maxrajdagi ikkala 12 ni qisqartiring.

$$\frac{5}{25}$$

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

$$\frac{1}{5}$$

Omil

$$\frac{1}{5} = 0,2$$