is 5-2/5 = 4 and 3/5 or 4.6
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2/5 plus 1/5 minus 3/10 is equal to 0.3 or 3/10
2/5 minus 1/10 is 3/10.
As these numbers have the same denominator (5), we can simply take off unit for unit: 5-2 = 3 1/5 - 3/5 = -2/5 So we get 3-2/5 which is 2 and 3/5 So the answer to 5 and one fifth minus 2 and three fifths is 2 and three fifths.
16/5 - 14/5 = 2/5
5 4/5 - 3 1/5 = 2 3/5