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受欢迎的初等代数 >

5(1/5)+(1/5)(15)

解答

5 (\frac{1}{5}) + (\frac{1}{5}) (15)

解答

4

求解步骤

5 (\frac{1}{5}) + (\frac{1}{5}) (15)

遵循 PEMDAS 运算顺序

乘除（左右）

5 (\frac{1}{5}) : 1

5 (\frac{1}{5})

使用法则:

(a) = a

(\frac{1}{5}) = \frac{1}{5}

= 5 \cdot \frac{1}{5}

将项转换为分式:

5 = \frac{5}{1}

= \frac{5}{1} \cdot \frac{1}{5}

交叉约去公约数:

5

= 1

= 1 + (\frac{1}{5}) (15)

乘除（左右）

(\frac{1}{5}) (15) : 3

(\frac{1}{5}) (15)

(\frac{1}{5}) (15) = \frac{1}{5} \cdot 15

(\frac{1}{5}) (15)

使用法则:

(a) = a

(\frac{1}{5}) = \frac{1}{5}

= \frac{1}{5} (15)

使用法则:

(a) = a

(15) = 15

= \frac{1}{5} \cdot 15

= \frac{1}{5} \cdot 15

\frac{1}{5} \cdot 15 = 3

\frac{1}{5} \cdot 15

将项转换为分式:

15 = \frac{15}{1}

= \frac{1}{5} \cdot \frac{15}{1}

使用分式法则:

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

= \frac{1 \cdot 15}{5 \cdot 1}

\frac{1 \cdot 15}{5 \cdot 1} = 3

\frac{1 \cdot 15}{5 \cdot 1}

\frac{1 \cdot 15}{5 \cdot 1} = \frac{15}{5}

\frac{1 \cdot 15}{5 \cdot 1}

数字相乘:

1 \cdot 15 = 15

= \frac{15}{5 \cdot 1}

数字相乘:

5 \cdot 1 = 5

= \frac{15}{5}

= \frac{15}{5}

数字相除:

\frac{15}{5} = 3

= 3

= 3

= 3

= 1 + 3

加减（左右）

1 + 3 : 4

1 + 3

1 + 3 = 4

= 4

= 4

流行的例子

- 4^{2} + 4 (4)

10-(5+5)-3+(15+18)-6

10 - (5 + 5) - 3 + (15 + 18) - 6

5/9 + (4/9 - 7/11)

4 - 9 - 2

(14+8^2)\div 2-10

(14 + 8^{2}) \div 2 - 10