59/10--91/2= eching

$$5 \frac { 9 } { 10 } - - 9 \frac { 1 } { 2 } =$$

Baholash

$$\frac{77}{5}=15,4$$

Yechim qadamlari

50 hosil qilish uchun 5 va 10 ni ko'paytirish.

$$\frac{50+9}{10}-\left(-\frac{9\times 2+1}{2}\right)$$

59 olish uchun 50 va 9'ni qo'shing.

$$\frac{59}{10}-\left(-\frac{9\times 2+1}{2}\right)$$

18 hosil qilish uchun 9 va 2 ni ko'paytirish.

$$\frac{59}{10}-\left(-\frac{18+1}{2}\right)$$

19 olish uchun 18 va 1'ni qo'shing.

$$\frac{59}{10}-\left(-\frac{19}{2}\right)$$

-\frac{19}{2} ning teskarisi \frac{19}{2} ga teng.

$$\frac{59}{10}+\frac{19}{2}$$

10 va 2 ning eng kichik umumiy karralisi 10 ga teng. \frac{59}{10} va \frac{19}{2} ni 10 maxraj bilan kasrlarga aylantirib oling.

$$\frac{59}{10}+\frac{95}{10}$$

\frac{59}{10} va \frac{95}{10} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{59+95}{10}$$

154 olish uchun 59 va 95'ni qo'shing.

$$\frac{154}{10}$$

\frac{154}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{77}{5}$$

Omil

$$\frac{7 \cdot 11}{5} = 15\frac{2}{5} = 15,4$$