Answer:
0.0016
Explanation:
0.4
-1/5 = -2/10 = -0.2, -1/4 = -25/100 = -0.25
-0.25-(-1/5)+0.2+(-1/4) = -0.25+0.2+0.2+0.25 = -0.25+0.25+0.2+0.2 = 0.4
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