780*(5/12+1/2) eching

$$780 \times ( \frac { 5 } { 12 } + \frac { 1 } { 2 } )$$

Baholash

$$715$$

Yechim qadamlari

12 va 2 ning eng kichik umumiy karralisi 12 ga teng. \frac{5}{12} va \frac{1}{2} ni 12 maxraj bilan kasrlarga aylantirib oling.

$$780\left(\frac{5}{12}+\frac{6}{12}\right)$$

\frac{5}{12} va \frac{6}{12} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$780\times \frac{5+6}{12}$$

11 olish uchun 5 va 6'ni qo'shing.

$$780\times \frac{11}{12}$$

780\times \frac{11}{12} ni yagona kasrga aylantiring.

$$\frac{780\times 11}{12}$$

8580 hosil qilish uchun 780 va 11 ni ko'paytirish.

$$\frac{8580}{12}$$

715 ni olish uchun 8580 ni 12 ga bo‘ling.

$$715$$

Omil

$$5\times 11\times 13$$