Solution

The perimeter of R is (30+10+30+10)=80.

The perimeter of S is 4*5=20.

So the

answer is 20/80.PS: Because the fraction 20/80 does not need to be reduced to lowest terms, any fraction that is equivalent to 20/80 is also considered correct, as long as it fits in the boxes. For example, both of the fractions 2/8 and 1/4 are considered correct.

Thus, the correct answer is 20/80 (or equivalent).
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