9514 1404 393
Answer:
B. -2/5+9/15 = 3/15
Explanation:
The only two answer choices that have -2/5 as part of the sum are B and C. Of those, choice C incorrectly represents the subtraction of -9/15.
The only reasonable choice is B.
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The result can be reduced from 3/15 to 1/5 by removing a factor of 3 from numerator and denominator.