Question

What is 0.8 as an irrational number

Answer 1

0.8 is a rational number (which implies that it is also a real number)

0.8 can be expressed as the ratio of two integers (namely 8/10) which is the definition of a rational number.

Rational numbers are a subset of Real numbers.

Answer 2

${\fbox{\fbox{\fbox{\large\sf\purple{AnsWeR}}}}}$

☞All the number which are not considered as rational numbers are irrational numbers.

• Rational number is always in p/q form.

• Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers.

• This is opposed to rational numbers, like 2, 7, one-fifth and -13/9, which can be, and are, expressed as the ratio of two whole numbers.

• When expressed as a decimal, irrational numbers go on forever after the decimal point and never repeat.

$\sf{THEREFORE,0.8=>\frac{8}{10} \: is \: a \: rational \:number}$