11/2-34/5 eching

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

Baholash

$$-\frac{23}{10}=-2,3$$

Yechim qadamlari

2 hosil qilish uchun 1 va 2 ni ko'paytirish.

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

3 olish uchun 2 va 1'ni qo'shing.

$$\frac{3}{2}-\frac{3\times 5+4}{5}$$

15 hosil qilish uchun 3 va 5 ni ko'paytirish.

$$\frac{3}{2}-\frac{15+4}{5}$$

19 olish uchun 15 va 4'ni qo'shing.

$$\frac{3}{2}-\frac{19}{5}$$

2 va 5 ning eng kichik umumiy karralisi 10 ga teng. \frac{3}{2} va \frac{19}{5} ni 10 maxraj bilan kasrlarga aylantirib oling.

$$\frac{15}{10}-\frac{38}{10}$$

\frac{15}{10} va \frac{38}{10} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{15-38}{10}$$

-23 olish uchun 15 dan 38 ni ayirish.

$$-\frac{23}{10}$$

Omil

$$-\frac{23}{10} = -2\frac{3}{10} = -2,3$$