It means that either the numbers involved in the word problem are all rational or that any Irrational Numbers are being approximated by rational numbers.
You may or may not be able to. The diameter of a circle with circumference 10 cm is 10/pi, a division problem. But there is no answer using rational numbers.
Rational
If you can write down the number completely, using digits, decimals, and fractions, then it's rational.
If you can completely write a number, using digits, fractions and decimals, then the number is rational. You appear to have accomplished that.
Yes. It's the ratio of (30,303) to (250,000). Any number that you can write completely using digits and a decimal point is a rational number.
Yes. Any number that you can completely write down using digits and a decimal point is a rational number.
If you can completely write a number, using digits, fractions and decimals, then the number is rational. You appear to have accomplished that.
If you can completely write a number, using digits, fractions and decimals, then the number is rational. You appear to have accomplished that.
As a solution to the four fours problem (using the number four no more than four times to come up with the solution, 31 is equal to (4!+4)/4+4!
Not necessarily. The value of 3 (rational) raised to the power 1/2 (rational) is not rational.
If you can completely write a number, using digits, fractions and decimals, then the number is rational. You appear to have accomplished that.
-- Any number that you can completely write down using digits, and a decimal point or fraction bar if needed, is rational. -- A rational number is defined as one that can be written as a fraction using whole numbers. -19 can be written as the fraction -19/1 .