1/20+2/5+3/10 eching

$$\frac{ 1 }{ 20 } + \frac{ 2 }{ 5 } + \frac{ 3 }{ 10 }$$

Baholash

$$\frac{3}{4}=0,75$$

Yechim qadamlari

20 va 5 ning eng kichik umumiy karralisi 20 ga teng. \frac{1}{20} va \frac{2}{5} ni 20 maxraj bilan kasrlarga aylantirib oling.

$$\frac{1}{20}+\frac{8}{20}+\frac{3}{10}$$

\frac{1}{20} va \frac{8}{20} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{1+8}{20}+\frac{3}{10}$$

9 olish uchun 1 va 8'ni qo'shing.

$$\frac{9}{20}+\frac{3}{10}$$

20 va 10 ning eng kichik umumiy karralisi 20 ga teng. \frac{9}{20} va \frac{3}{10} ni 20 maxraj bilan kasrlarga aylantirib oling.

$$\frac{9}{20}+\frac{6}{20}$$

\frac{9}{20} va \frac{6}{20} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{9+6}{20}$$

15 olish uchun 9 va 6'ni qo'shing.

$$\frac{15}{20}$$

\frac{15}{20} ulushini 5 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{3}{4}$$

Omil

$$\frac{3}{2 ^ {2}} = 0,75$$