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受欢迎的初等代数 >

7/10× 5/8× 96

解答

7/10 \times 5/8 \times 96

解答

42

求解步骤

7/10 \times 5/8 \times 96

遵循 PEMDAS 运算顺序

乘除（左右）

7/10 = \frac{7}{10}

= \frac{7}{10} \times 5/8 \times 96

\frac{7}{10} \times 5 = \frac{7}{2}

\frac{7}{10} \cdot 5

将项转换为分式:

5 = \frac{5}{1}

= \frac{7}{10} \cdot \frac{5}{1}

使用分式法则:

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

= \frac{7 \cdot 5}{10 \cdot 1}

\frac{7 \cdot 5}{10 \cdot 1} = \frac{7}{2}

\frac{7 \cdot 5}{10 \cdot 1}

数字相乘:

10 \cdot 1 = 10

= \frac{7 \cdot 5}{10}

因式分解数字:

10 = 5 \cdot 2

= \frac{7 \cdot 5}{5 \cdot 2}

约分:

5

= \frac{7}{2}

= \frac{7}{2}

= \frac{7}{2} /8 \times 96

\frac{7}{2} /8 = \frac{7}{16}

\frac{7}{2} /8

将项转换为分式:

8 = \frac{8}{1}

= \frac{7}{2} \div \frac{8}{1}

使用分式法则:

\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c}

= \frac{7}{2} \cdot \frac{1}{8}

分式相乘:

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

= \frac{7 \cdot 1}{2 \cdot 8}

数字相乘:

7 \cdot 1 = 7

= \frac{7}{2 \cdot 8}

数字相乘:

2 \cdot 8 = 16

= \frac{7}{16}

= \frac{7}{16} \times 96

\frac{7}{16} \times 96 = 42

\frac{7}{16} \cdot 96

将项转换为分式:

96 = \frac{96}{1}

= \frac{7}{16} \cdot \frac{96}{1}

使用分式法则:

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

= \frac{7 \cdot 96}{16 \cdot 1}

消掉

\frac{7 \cdot 96}{16 \cdot 1} : 42

\frac{7 \cdot 96}{16 \cdot 1}

数字相乘:

16 \cdot 1 = 16

= \frac{7 \cdot 96}{16}

数字相除:

\frac{96}{16} = 6

= 7 \cdot 6

数字相乘:

7 \cdot 6 = 42

= 42

= 42

= 42

流行的例子

(- 3)^{2} - (- 3) - 12

\frac{3}{4} (2) + 2

3^{1} - 2^{2} + 1^{3}

16 - 10 \div 5 + 13

- 3 - 4 \times 7