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受欢迎的初等代数 >

2/3 (6-3/2)

解答

\frac{2}{3} (6 - \frac{3}{2})

解答

3

求解步骤

\frac{2}{3} (6 - \frac{3}{2})

遵循 PEMDAS 运算顺序

计算括号内的值

(6 - \frac{3}{2}) : \frac{9}{2}

6 - \frac{3}{2}

6 - \frac{3}{2} = \frac{9}{2}

6 - \frac{3}{2}

将项转换为分式:

6 = \frac{6 \cdot 2}{2}

= \frac{6 \cdot 2}{2} - \frac{3}{2}

因为分母相等，所以合并分式:

\frac{a}{c} \pm \frac{b}{c} = \frac{a \pm b}{c}

= \frac{6 \cdot 2 - 3}{2}

6 \cdot 2 - 3 = 9

6 \cdot 2 - 3

数字相乘:

6 \cdot 2 = 12

= 12 - 3

数字相减:

12 - 3 = 9

= 9

= \frac{9}{2}

= \frac{9}{2}

= \frac{2}{3} \cdot \frac{9}{2}

乘除（左右）

\frac{2}{3} \cdot \frac{9}{2} : 3

\frac{2}{3} \cdot \frac{9}{2}

交叉约去公约数:

2

= \frac{9}{3}

数字相除:

\frac{9}{3} = 3

= 3

= 3

流行的例子

4^{2} + 5^{2}

5^{2} - 2^{2}

6^{2} + 7^{2}

5^{2} + 6^{2}

- 1 + 0 + 2 + 6 + 14