Define real numbers: Understand what a real number is.A real number is any number that can be found on the number line. This includes both rational numbers (numbers that can be expressed as a fraction of two integers) and irrational numbers (numbers that cannot be expressed as a simple fraction).
Identify 211 as rational: Determine if 211 is a rational number.211 is a fraction where both the numerator (11) and the denominator (2) are integers. Since it can be expressed as a fraction of two integers, 211 is a rational number.
Confirm 211 as real: Conclude if 211 is a real number.Since all rational numbers are real numbers, and we have established that 211 is a rational number, it follows that 211 is also a real number.
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