6/4+9/1 eching

$$\frac { 6 } { 4 } + \frac { 9 } { 1 }$$

Baholash

$$\frac{21}{2}=10,5$$

Yechim qadamlari

\frac{6}{4} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

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

Har qanday son birga bo‘linganda, natija o‘zi chiqadi.

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

9 ni \frac{18}{2} kasrga o‘giring.

$$\frac{3}{2}+\frac{18}{2}$$

\frac{3}{2} va \frac{18}{2} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{3+18}{2}$$

21 olish uchun 3 va 18'ni qo'shing.

$$\frac{21}{2}$$

Omil

$$\frac{3 \cdot 7}{2} = 10\frac{1}{2} = 10,5$$