Define rational number: Step 1: Define a rational number.A rational number can be expressed as a fraction where both the numerator and the denominator are integers, and the denominator is not zero.
Express −10 as fraction: Step 2: Express −10 as a fraction.−10 can be written as −110, where −10 is the numerator and 1 is the denominator.
Check integer values: Step 3: Check if both numerator and denominator are integers.In the fraction −110, both −10 and 1 are integers, and the denominator is not zero.
Conclude −10 as rational: Step 4: Conclude if −10 is a rational number.Since −10 can be expressed as a fraction with integer values in both the numerator and denominator, it is a rational number.
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