The order from least to greatest is "forty percent, 0.5, eight-ninths, six-fifths".
<h3>What is a fraction?</h3>
A fraction is a part of the whole represented by a/b, where a and b are any integers.
The given numbers are,
six fifths = 6/5 = 1.2
eight ninths = 8/9 = 0.9
0.5
40% = 0.4
Therefore, the order from least to greatest is "forty percent, 0.5, eight-ninths, six-fifths".
Learn more on fractions here:
brainly.com/question/10354322
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