The compound ratio of 5:6, 3:2 and 4:5?	Choose the correct choice
A) 1:9  B) 1:7  C) 1:2  D) 1:1  E) 1:4
5/6 * 3/2 * 4/5= 
<gadget id="calculator">5/6 * 3/2 * 4/5</gadget>
<output>1</output>
1/1= 
<gadget id="calculator">1/1</gadget>
<output>1</output>
1:1   Answer: 1:1
<result>D</result>
The compound ratio of 5:6, 3:2 and 4:5?