4.5*31/2-3:0.2 eching

$$4.5 \cdot 3 \frac { 1 } { 2 } - 3 : 0.2$$

Baholash

$$0,75$$

Yechim qadamlari

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

$$4,5\times \frac{6+1}{2}-\frac{3}{0,2}$$

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

$$4,5\times \frac{7}{2}-\frac{3}{0,2}$$

4,5 o‘nlik raqamni uning \frac{45}{10} kasrga o‘giring. \frac{45}{10} ulushini 5 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{9}{2}\times \frac{7}{2}-\frac{3}{0,2}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{9}{2} ni \frac{7}{2} ga ko‘paytiring.

$$\frac{9\times 7}{2\times 2}-\frac{3}{0,2}$$

\frac{9\times 7}{2\times 2} kasridagi ko‘paytirishlarni bajaring.

$$\frac{63}{4}-\frac{3}{0,2}$$

\frac{3}{0,2} kasrini uning surat va maxrajini 10 ga ko‘paytirish bilan kengaytiring.

$$\frac{63}{4}-\frac{30}{2}$$

15 ni olish uchun 30 ni 2 ga bo‘ling.

$$\frac{63}{4}-15$$

15 ni \frac{60}{4} kasrga o‘giring.

$$\frac{63}{4}-\frac{60}{4}$$

\frac{63}{4} va \frac{60}{4} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{63-60}{4}$$

3 olish uchun 63 dan 60 ni ayirish.

$$\frac{3}{4}$$

Omil

$$\frac{3}{2 ^ {2}} = 0,75$$