SOLUTION: Is -4.2 a natural number, integer, rational number or an irrational number

Question 900629: Is -4.2 a natural number, integer, rational number or an irrational number
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
-4.2 is NOT a natural number since it isn't a counting number (ie a positive whole number)

-4.2 is NOT an integer

--------------------------------------------------------------------------

-4.2 = -(4+0.2) = -(4+2/10) = -(40/10 + 2/10) = -42/10 = -21/5

-4.2 = -21/5

This shows that -4.2 is a rational number. Since it is rational, it is NOT irrational.
RELATED QUESTIONS
Is -144 over 4 a natural number, whole number, rational, irrational, Integer, or Real... (answered by richard1234)

Is -9 a real number, whole number, natural number, rational number, irrational number, an (answered by edjones)

Is -4 a real number, rational, irrational, integer, whole or a natural... (answered by solver91311)

is -22 a natural number, whole number, integer, rational number, irrational number or... (answered by vleith)

is the square root of 93 a natural number, a whole number, an integer, rational number,... (answered by CubeyThePenguin)

is 1/2 a real number, rational number, integer, whole number, or an irrational... (answered by edjones)

1. is negative5 over 6 a whole natural interger irrational rational or real number? 2.is (answered by Theo)

Is -5/12 a real number, rational, irrational, integer, whole or a natural... (answered by stanbon)

-0.002 IS IT A RATIONAL, IRRATIONAL, WHOLE NUMBER, INTEGER, OR NATURAL... (answered by stanbon)