125/6+137/9= eching

$$12 \frac { 5 } { 6 } + 13 \frac { 7 } { 9 } =$$

Baholash

$$\frac{479}{18}\approx 26,611111111$$

Yechim qadamlari

72 hosil qilish uchun 12 va 6 ni ko'paytirish.

$$\frac{72+5}{6}+\frac{13\times 9+7}{9}$$

77 olish uchun 72 va 5'ni qo'shing.

$$\frac{77}{6}+\frac{13\times 9+7}{9}$$

117 hosil qilish uchun 13 va 9 ni ko'paytirish.

$$\frac{77}{6}+\frac{117+7}{9}$$

124 olish uchun 117 va 7'ni qo'shing.

$$\frac{77}{6}+\frac{124}{9}$$

6 va 9 ning eng kichik umumiy karralisi 18 ga teng. \frac{77}{6} va \frac{124}{9} ni 18 maxraj bilan kasrlarga aylantirib oling.

$$\frac{231}{18}+\frac{248}{18}$$

\frac{231}{18} va \frac{248}{18} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{231+248}{18}$$

479 olish uchun 231 va 248'ni qo'shing.

$$\frac{479}{18}$$

Omil

$$\frac{479}{2 \cdot 3 ^ {2}} = 26\frac{11}{18} = 26,61111111111111$$