Ok so lets plug in a first -1/3(-3) would equal 9 a is the accurate answer
In order to subtract fractions, you need the denominators (bottom number) to be the same.

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The perimeter of a ruler that measures 6 in. by 5656 in. is 11,324 in.
Explanation:
To find the perimeter<span> of a rectangle or square you have to add the lengths of all the four sides.</span>
Your right on both of your answers to number 1 and 2
1/4+5/4=1.5
1.5 divided by 4 = 0.5625