3*5*7:10-9*6= eching

$$3 \times 5 \times 7 : 10 - 9 \times 6 =$$

Baholash

$$-\frac{87}{2}=-43,5$$

Yechim qadamlari

15 hosil qilish uchun 3 va 5 ni ko'paytirish.

$$\frac{15\times 7}{10}-9\times 6$$

105 hosil qilish uchun 15 va 7 ni ko'paytirish.

$$\frac{105}{10}-9\times 6$$

\frac{105}{10} ulushini 5 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{21}{2}-9\times 6$$

54 hosil qilish uchun 9 va 6 ni ko'paytirish.

$$\frac{21}{2}-54$$

54 ni \frac{108}{2} kasrga o‘giring.

$$\frac{21}{2}-\frac{108}{2}$$

\frac{21}{2} va \frac{108}{2} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{21-108}{2}$$

-87 olish uchun 21 dan 108 ni ayirish.

$$-\frac{87}{2}$$

Omil

$$-\frac{87}{2} = -43\frac{1}{2} = -43,5$$