explain why calclating four and two fifths minus two and a half doesnt equa two and one third

explain why calculating four and two fifths minus 2 and a half doesnt equal two and one third
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4(2/5) - 2(1/2) is not equal to 2(1/3).

From above 2 = 4 - 2 but 2/5 - 1/2 = -1/10 and not 1/3

Hence 4(2/5) - 2(1/2) = 1(9/10) and not 2(1/3)
by Level 3 User (3.2k points)

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