3 years ago

6) If a and b are natural numbers, then which of the following must also be a natural number?

1 answer:

8 0

A - b is NOT always natural. Eg 4 - 7 = -3 therefore not in the natural number set.

ab is always natural

a/b is NOT always natural. Eg 4/7

So the answer to the question is (b) only II must be a natural number answer.

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