Question

Jeremy is playing a game called “Rational Round Up” where he has to collect all the numbers in a maze that are rational and then get to the end of the maze. When he collects a number he must prove it is rational by writing it as a quotient of two integers. Help him determine how to prove that each of the following numbers is rational.


1. 2.4

Answer 1

1/1
2/2
4/2 or 4/1

in fact since every integer is divisible by one every integer is a rational number. You have to get far out to get irrational, like sqrt( 2 ) or pi or e
Remember that fractions are generally ratios of whole numbers so rational
like 3/273 is rational

Answer 2

What about 74 how would I change that?

Answer 3

74 is an integer 74/1

Now if you had said 7.4
I would have said
74/10
so still rational

Answer 4

17.3333333?

Answer 5

Identify all sets to which the number 3 Belongs

Answer 6

87.125