# If a is a rational number and b is a rational number, then the product ab must be____.

**Solution:**

If a is a rational number and b is a rational number, then the product ab must be a rational number.

A Rational Number is a number of the form p/q where p and q are integers and q≠0.

Let's consider an example with two rational numbers, a and b, where

a = 3/5 and b = 4/7

The product of the two numbers will be:

a × b = (3/5) × (4/7) = 12/35 (rational number)

Thus, we can see that the product of two rational numbers is a rational number.

## If a is a rational number and b is a rational number, then the product ab must be____.

**Summary:**

If a is a rational number and b is a rational number, then the product ab must be a rational number.

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