A repeating rational number is an irrational number. An irrational number is an number that has no definite end. 4.15 has a definite end and is therefore a rational number.
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All repeating decimals are rational numbers. Not all rational numbers are repeating decimals.
No. A rational number is any terminating numeral. A repeating decimal is irrational.
No. It is a rational number. Any repeating decimal or terminating decimal is rational.
Always
Yes- every terminating or repeating decimal number is rational.