If its a rational number then its decimal equivalent can be expressed as a fraction
No, actually 2/5 is equal to .4 which is perfectly rational. Irrational numbers have an infinitely long decimal expansion. This is just one digit. Any rational number divided by any other rational number gives another rational number. Having an infinitely long decimal expansion is a necessary but not sufficient criterion for irrationality... for example, 1/3 is rational, though its decimal expansion is the infinitely long 0.33333333...
The number 1.12312341234 is a rational number because it can be expressed as a fraction of two integers. Specifically, it has a finite decimal representation. Any number with a terminating or repeating decimal expansion qualifies as rational, and since this number has a finite number of decimal places, it falls into that category.
It depends. A terminating decimal is a rational number. A decimal which, after a finite number of places, becomes a repeating (or recurrent) decimal is also a rational number. A decimal that is not terminating, nor [eventually] settles into a recurring pattern is not a rational number. Note that the decimal need not become recurring immediately.
Yes, it is. Any terminating or a non-terminating recurring decimal is a rational number. In this case, the decimal is terminated. And so, this number is a rational number.
Any number or decimal number that can be expressed as fraction is rational.
No, actually 2/5 is equal to .4 which is perfectly rational. Irrational numbers have an infinitely long decimal expansion. This is just one digit. Any rational number divided by any other rational number gives another rational number. Having an infinitely long decimal expansion is a necessary but not sufficient criterion for irrationality... for example, 1/3 is rational, though its decimal expansion is the infinitely long 0.33333333...
The number 1.12312341234 is a rational number because it can be expressed as a fraction of two integers. Specifically, it has a finite decimal representation. Any number with a terminating or repeating decimal expansion qualifies as rational, and since this number has a finite number of decimal places, it falls into that category.
Yes. Any terminating decimal is a rational number. Any repeating decimal also.
No. It is a rational number. Any repeating decimal or terminating decimal is rational.
It depends. A terminating decimal is a rational number. A decimal which, after a finite number of places, becomes a repeating (or recurrent) decimal is also a rational number. A decimal that is not terminating, nor [eventually] settles into a recurring pattern is not a rational number. Note that the decimal need not become recurring immediately.
Any number with a finite number of decimals is rational.
No. A rational number is any terminating numeral. A repeating decimal is irrational.
Yes, it is. Any terminating or a non-terminating recurring decimal is a rational number. In this case, the decimal is terminated. And so, this number is a rational number.
Yes. Any number with a finite number of decimal digits is rational.
Any number or decimal number that can be expressed as fraction is rational.
Yes. Any terminating decimal is rational.
Well, yes. Any decimal that terminates is a rational number.