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Q: What are the rules for multiplying rational numbers?

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The question has no sensible answer because its proposition is not true. Multiplication is commutative, division is not, so the rules are NOT the same.

Dividing by a non-zero rational number is the same as multiplying by its reciprocal.

It the two rational numbers have different signs, then the answer will be negative, otherwise it will be positive.

The algorithm is A/B * C/D = AB/CD.

The set of rational numbers includes all whole numbers, so SOME rational numbers will also be whole number. But not all rational numbers are whole numbers. So, as a rule, no, rational numbers are not whole numbers.

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Fractions and decimals are usually rational numbers. Besides, multiplying rational and irrational numbers is also similar.

The question has no sensible answer because its proposition is not true. Multiplication is commutative, division is not, so the rules are NOT the same.

Dividing by a non-zero rational number is the same as multiplying by its reciprocal.

It the two rational numbers have different signs, then the answer will be negative, otherwise it will be positive.

did you get this off of big ideas learning

The rules are the same.

Dividing by a rational number (other than zero) is simply multiplication by its reciprocal.

Yes, but only if the rational number is non-zero.

The algorithm is A/B * C/D = AB/CD.

A rational number can be stated in the form a/b where and b are integers. Adding or multiplying such numbers always gives another number that can be expressed in this form also. So it is also rational.

The product of two rational numbers, X and Y, is smaller than either of them if both are between 0 and 1.

If 0.75 is the radius, that's rational. If 0.75 is the diameter, the radius is also rational: multiplying two rational numbers together always gives you a rational number.

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