zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的代数 >

化简 1/2 9

解答

化简

\frac{1}{2} 9

解答

\frac{9}{2}

+1

十进制

4.5

求解步骤

\frac{1}{2} \cdot 9

将项转换为分式:

9 = \frac{9}{1}

= \frac{1}{2} \cdot \frac{9}{1}

使用分式法则:

\frac{a}{b} \cdot \frac{c}{d} = \frac{a \cdot c}{b \cdot d}

= \frac{1 \cdot 9}{2 \cdot 1}

数字相乘:

1 \cdot 9 = 9

= \frac{9}{2 \cdot 1}

数字相乘:

2 \cdot 1 = 2

= \frac{9}{2}

流行的例子

因式分解 6mn-5m^2n^2-9mn^2-11mn+10mn^2+5m^2n^2

f a c t or 6 mn - 5 m^{2} n^{2} - 9 m n^{2} - 11 mn + 10 m n^{2} + 5 m^{2} n^{2}

3 x^{2} + x = - 2 x - 7

(a+2)/4 <= (a-1)/3

\frac{a + 2}{4} \leq \frac{a - 1}{3}

化简 (7+i)/(7-i)

s im pl i f y \frac{7 + i}{7 - i}

45-[4-2y-4(y+7)]=-4(1+3y)-[4-3(y+2)-2(2y-5)]

45 - [4 - 2 y - 4 (y + 7)] = - 4 (1 + 3 y) - [4 - 3 (y + 2) - 2 (2 y - 5)]