If 3a = 4b and ab ≠0, what is the ratio of a/4 to b/3?  Answers: A) 64/27 B) 9/16 C) 1 D) 6/8 E) 8/6
A nice fast approach is the first find a pair of numbers that satisfy the given equation: 3a = 4b   Here's one pair: a =4 and b =3   What is the ratio of a/9 to b/8?   In other words, what is the value of (a/4)/(b/3)?   Plug in values to get: (a/4)/(b/3) = (4/4)/(3/3)= 
<gadget id="calculator">(4/4)/(3/3)</gadget>
<output>1</output>
1/1= 
<gadget id="calculator">1/1</gadget>
<output>1</output>
1   1
<result>C</result>
If 3a = 4b and ab ≠0, what is the ratio of a/4 to b/3?