(2/3+1/2div2/5)+1/3 eching

$$( \frac { 2 } { 3 } + \frac { 1 } { 2 } \div \frac { 2 } { 5 } ) + \frac { 1 } { 3 }$$

Baholash

$$\frac{9}{4}=2,25$$

Yechim qadamlari

\frac{1}{2} ni \frac{2}{5} ga bo'lish \frac{1}{2} ga k'paytirish \frac{2}{5} ga qaytarish.

$$\frac{2}{3}+\frac{1}{2}\times \frac{5}{2}+\frac{1}{3}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{1}{2} ni \frac{5}{2} ga ko‘paytiring.

$$\frac{2}{3}+\frac{1\times 5}{2\times 2}+\frac{1}{3}$$

\frac{1\times 5}{2\times 2} kasridagi ko‘paytirishlarni bajaring.

$$\frac{2}{3}+\frac{5}{4}+\frac{1}{3}$$

3 va 4 ning eng kichik umumiy karralisi 12 ga teng. \frac{2}{3} va \frac{5}{4} ni 12 maxraj bilan kasrlarga aylantirib oling.

$$\frac{8}{12}+\frac{15}{12}+\frac{1}{3}$$

\frac{8}{12} va \frac{15}{12} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{8+15}{12}+\frac{1}{3}$$

23 olish uchun 8 va 15'ni qo'shing.

$$\frac{23}{12}+\frac{1}{3}$$

12 va 3 ning eng kichik umumiy karralisi 12 ga teng. \frac{23}{12} va \frac{1}{3} ni 12 maxraj bilan kasrlarga aylantirib oling.

$$\frac{23}{12}+\frac{4}{12}$$

\frac{23}{12} va \frac{4}{12} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{23+4}{12}$$

27 olish uchun 23 va 4'ni qo'shing.

$$\frac{27}{12}$$

\frac{27}{12} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{9}{4}$$

Omil

$$\frac{3 ^ {2}}{2 ^ {2}} = 2\frac{1}{4} = 2,25$$