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受欢迎的初等代数 >

4× (1\div 12)

解答

4 \times (1 \div 12)

解答

\frac{1}{3}

+1

十进制

0.33333 \dots

求解步骤

4 \times (1 \div 12)

遵循 PEMDAS 运算顺序

计算括号内的值

(1 \div 12) : \frac{1}{12}

1 \div 12

1 \div 12 = \frac{1}{12}

= \frac{1}{12}

= 4 \times \frac{1}{12}

乘除（左右）

4 \times \frac{1}{12} : \frac{1}{3}

4 \times \frac{1}{12}

将项转换为分式:

4 = \frac{4}{1}

= \frac{4}{1} \cdot \frac{1}{12}

使用分式法则:

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

= \frac{4 \cdot 1}{1 \cdot 12}

\frac{4 \cdot 1}{1 \cdot 12} = \frac{1}{3}

\frac{4 \cdot 1}{1 \cdot 12}

\frac{4 \cdot 1}{1 \cdot 12} = \frac{4}{12}

\frac{4 \cdot 1}{1 \cdot 12}

数字相乘:

4 \cdot 1 = 4

= \frac{4}{1 \cdot 12}

数字相乘:

1 \cdot 12 = 12

= \frac{4}{12}

= \frac{4}{12}

对数字约分

\frac{4}{12} = \frac{1}{3}

= \frac{1}{3}

= \frac{1}{3}

= \frac{1}{3}

流行的例子

(50-20)-(30+20)+8-38

(50 - 20) - (30 + 20) + 8 - 38

19+{[(-4)-(-2)]+6}+(-7)

19 + {[(- 4) - (- 2)] + 6} + (- 7)

(2× (-5))(3×+5)

(2 \times (- 5)) (3 \times + 5)

- 5 + 2 - (- 3)

- 2 \times 3 + 1