Prove the following

prove99.7isrational

Rational Number Definition

A number is rational (r) if
it can be expressed as the quotient of two integers, m and n

r  =  m
  n

Account for Decimal

Since we have 1 digits to the right of our decimal place,
we multiply 99.7 by 101

99.7 by 101 = 997

997 is our m value

And 10 is our n value

So we have the following ratio:

99.7  =  997
  10

Therefore, 99.7 is a rational number

Final Answer


99.7 is rational


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