-0.8 is a rational number because it can represented in the form of p/q (where p and q are integers).
-0.8 in the form of p/q: -8/10 or -16/20 or -80/100 etc.
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A decimal rational number can be expressed as a fraction A decimal irrational number can not be expressed as a fraction
They are irrational.
Rational, since it can be expressed as a terminating decimal.
irrational, if it's is not tons of #s after the decimal that means its terrminating irrational
0.33333333333 is irrational, with the numeral 3 going on and on in that decimal.