Q: Is 4 with a line over it a rational number?

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Yes. It's the ratio of -144 and 4. That makes it a rational number by definition.

.4/.8 is the same as 1/2 which is a rational number

Yes.

4 is a rational number. Any number is rational as long as it can be put into a fraction or ratio. In other words, 4 is a rational number because if you want to express 4 as a fraction, you would just put it over 1; 4 is the numerator, and 1 is the denominator in this case.

The rational number -4 can be expressed as -4/1 or -8/2 or -12/3, and so on.

Related questions

5/16

Yes, 3/4 is a rational number

No. An irrational number is any number that is not a rational number; A rational number is any number that can be expressed as one integer over another integer. negative 3 over 4 is one integer (negative 3) over another integer (4), and so is a rational number.

Yes. It's the ratio of -144 and 4. That makes it a rational number by definition.

Any number that can be expressed as a fraction is rational. So yes.

.4/.8 is the same as 1/2 which is a rational number

Yes 4/10 or 2/5 is a rational number because it can be expressed as a fraction

TRUE

Yes.

The midway point of 1/4 and 3/4 is 1/2 * (1/4 + 3/4) = 1/2 * (4/4) = 1/2

4 is a rational number. Any number is rational as long as it can be put into a fraction or ratio. In other words, 4 is a rational number because if you want to express 4 as a fraction, you would just put it over 1; 4 is the numerator, and 1 is the denominator in this case.

The rational number -4 can be expressed as -4/1 or -8/2 or -12/3, and so on.