1.9/3+9-1/4= eching

$$\frac { 1.9 } { 3 } + \frac { 9 - 1 } { 4 } =$$

Baholash

$$\frac{79}{30}\approx 2,633333333$$

Yechim qadamlari

\frac{1,9}{3} kasrini uning surat va maxrajini 10 ga ko‘paytirish bilan kengaytiring.

$$\frac{19}{30}+\frac{9-1}{4}$$

8 olish uchun 9 dan 1 ni ayirish.

$$\frac{19}{30}+\frac{8}{4}$$

2 ni olish uchun 8 ni 4 ga bo‘ling.

$$\frac{19}{30}+2$$

2 ni \frac{60}{30} kasrga o‘giring.

$$\frac{19}{30}+\frac{60}{30}$$

\frac{19}{30} va \frac{60}{30} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{19+60}{30}$$

79 olish uchun 19 va 60'ni qo'shing.

$$\frac{79}{30}$$

Omil

$$\frac{79}{2 \cdot 3 \cdot 5} = 2\frac{19}{30} = 2,6333333333333333$$