Read, more elaboration about it is given here. Similarly, you may ask, what is the ratio of 16 to 20?
80%
Subsequently, question is, which ratio forms a proportion with 7 14? Notice that 7/14 and 36/72 are both equal to 1/2, so the two ratios are equal.
In respect to this, do the fractions 3/4 and 16 20 form a proportion?
These products are not equal therefore 3/4 is not equivalent to 16/20. An alternative proof: 20/4=5 (the ratio of the denominators). These ratios are different therefore the 3/4 is not equivalent to 16/20.
What is 15 out of 20 as a percentage?
75%