Question

求x，谢谢。题目：3/4÷1/2=x：4/5

... 不小心忘了。

Answer 1

3/4÷1/2=x：4/5
(1/2)x=3/5,
x=6/5.

Answer 2

x = 3/4 *2*5/4;

x = 15/8

Answer 3

化作：0.5x＝0.75*0.8

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0.5x＝0.6

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X＝1.2

Answer 4

列式计算如上图示。