Rational numbers are numbers that can be expressed as the quotient or fraction of two integers, where the denominator is not zero. Let's analyze each of the given numbers:
- 3: This can be expressed as \( \frac{3}{1} \), so it is a rational number.
- 10.777...: This represents a repeating decimal (10.777...) which can be expressed as a fraction. Therefore, it is a rational number.
- 5: This can also be expressed as \( \frac{5}{1} \), making it a rational number.
- 4/10: This is already in the form of a fraction, and it represents a rational number (it can also be simplified to \( \frac{2}{5} \)).
All of the listed numbers (3, 10.777..., 5, 4/10) are rational numbers.
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