1/3+3/6-1/9 eching

$$\frac { 1 } { 3 } + \frac { 3 } { 6 } - \frac { 1 } { 9 }$$

Baholash

$$\frac{13}{18}\approx 0,722222222$$

Yechim qadamlari

\frac{3}{6} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{1}{3}+\frac{1}{2}-\frac{1}{9}$$

3 va 2 ning eng kichik umumiy karralisi 6 ga teng. \frac{1}{3} va \frac{1}{2} ni 6 maxraj bilan kasrlarga aylantirib oling.

$$\frac{2}{6}+\frac{3}{6}-\frac{1}{9}$$

\frac{2}{6} va \frac{3}{6} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{2+3}{6}-\frac{1}{9}$$

5 olish uchun 2 va 3'ni qo'shing.

$$\frac{5}{6}-\frac{1}{9}$$

6 va 9 ning eng kichik umumiy karralisi 18 ga teng. \frac{5}{6} va \frac{1}{9} ni 18 maxraj bilan kasrlarga aylantirib oling.

$$\frac{15}{18}-\frac{2}{18}$$

\frac{15}{18} va \frac{2}{18} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{15-2}{18}$$

13 olish uchun 15 dan 2 ni ayirish.

$$\frac{13}{18}$$

Omil

$$\frac{13}{2 \cdot 3 ^ {2}} = 0,7222222222222222$$