(-3/4)*[-31/2-(-21/3)] eching

$$( - \frac { 3 } { 4 } ) \times [ - 3 \frac { 1 } { 2 } - ( - 2 \frac { 1 } { 3 } ) ]$$

Baholash

$$\frac{7}{8}=0,875$$

Yechim qadamlari

6 hosil qilish uchun 3 va 2 ni ko'paytirish.

$$-\frac{3}{4}\left(-\frac{6+1}{2}-\left(-\frac{2\times 3+1}{3}\right)\right)$$

7 olish uchun 6 va 1'ni qo'shing.

$$-\frac{3}{4}\left(-\frac{7}{2}-\left(-\frac{2\times 3+1}{3}\right)\right)$$

6 hosil qilish uchun 2 va 3 ni ko'paytirish.

$$-\frac{3}{4}\left(-\frac{7}{2}-\left(-\frac{6+1}{3}\right)\right)$$

7 olish uchun 6 va 1'ni qo'shing.

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

-\frac{7}{3} ning teskarisi \frac{7}{3} ga teng.

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

2 va 3 ning eng kichik umumiy karralisi 6 ga teng. -\frac{7}{2} va \frac{7}{3} ni 6 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{3}{4}\left(-\frac{21}{6}+\frac{14}{6}\right)$$

-\frac{21}{6} va \frac{14}{6} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$-\frac{3}{4}\times \frac{-21+14}{6}$$

-7 olish uchun -21 va 14'ni qo'shing.

$$-\frac{3}{4}\left(-\frac{7}{6}\right)$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali -\frac{3}{4} ni -\frac{7}{6} ga ko‘paytiring.

$$\frac{-3\left(-7\right)}{4\times 6}$$

\frac{-3\left(-7\right)}{4\times 6} kasridagi ko‘paytirishlarni bajaring.

$$\frac{21}{24}$$

\frac{21}{24} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{7}{8}$$

Omil

$$\frac{7}{2 ^ {3}} = 0,875$$