Answer
7/50
Work Step by Step
We plug in the given values:
$$ (1/5)(1/5) - (1/3)(1/5) + 1/5 -(1/6)(1/5)$$
We now multiply and create a common denominator:
$$ (30/750) - 50/750 + 150/750 - 25/750 \\ = 7/50$$
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