-2/3*-8/14*7/10= eching

$$\frac { - 2 } { 3 } \cdot \frac { - 8 } { 14 } \cdot \frac { 7 } { 10 } =$$

Baholash

$$\frac{4}{15}\approx 0,266666667$$

Yechim qadamlari

\frac{-2}{3} kasri manfiy belgini olib tashlash bilan -\frac{2}{3} sifatida qayta yozilishi mumkin.

$$-\frac{2}{3}\times \frac{-8}{14}\times \frac{7}{10}$$

\frac{-8}{14} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$-\frac{2}{3}\left(-\frac{4}{7}\right)\times \frac{7}{10}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali -\frac{2}{3} ni -\frac{4}{7} ga ko‘paytiring.

$$\frac{-2\left(-4\right)}{3\times 7}\times \frac{7}{10}$$

\frac{-2\left(-4\right)}{3\times 7} kasridagi ko‘paytirishlarni bajaring.

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

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

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

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

$$\frac{56}{210}$$

\frac{56}{210} ulushini 14 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{4}{15}$$

Omil

$$\frac{2 ^ {2}}{3 \cdot 5} = 0,26666666666666666$$