0
Yes.
Why? Because a rational number is a number that can be written as a simple fraction.
Example 1.5 is a rational number because 1.5 = 3/2 (it can be written as a fraction)
Here are some more examples:
Number As a Fraction Rational?
5 5/1 Yes
1.75 7/4 Yes
.001 1/1000 Yes
0.111... 1/9 Yes
√2 ? NO !
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Continue Learning about Basic Math
Is 0.62 a rational number?
Yes, 0.62 is a rational number. A rational number can be written as the quotient of two integers. 0.62 can be written as 62/100, which can be simplified to 31/50.
Is the product of a rational number and a rational number a rational number?
yes
Is a rational number multiplied a rational number rational?
Yes.
Is the number 17.5 a rational number?
yes
Which number can be multiplied to a rational number to explain that the product of two rational numbers is rational?
It must be a generalised rational number. Otherwise, if you select a rational number to multiply, then you will only prove it for that number.
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