Let's convert 4 2/5 to deciimal, this way:
4 2/5 = 4 + 2/5, therefore:
We have 4 as an integer and 2/5 as a fraction.
Let's convert 2/5 to decimal and afterwards, we can add 4 to the result.
2/5 = 0.4
0.4 + 4 = 4.4
4 2/5 = 4.4
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