Question

The number (1.333and so on) belongs to which set of numbers?
-rrational numbers
-rational numbers, integers, and whole numbers
-rational numbers and integers but not whole numbers
-rational numbers but not integers or whole numbers

Answer 1

First some definitions

integer: any whole number e.g. -1,0,1
rational: can be expressed as a fraction with integral numerator and denominator. e.g. 1.25

Answer 2

all repeating numbers are rational

Answer 3

ok o.O

Answer 4

so its rational?

Answer 5

yes. do you know how to turn a repeating into a fraction to show it is rational?

Answer 6

no

Answer 7

Ok, in this case 1.33333...

let n = 1.33333...
10n = 13.33333...
10n-n = 12
9n = 12
n = 12/9

Answer 8

wait so the answer is d right?

Answer 9

yes

Answer 10

cool thx for explaining

Answer 11

sure, anytime

Answer 12

Oh and by the way, welcome to OpenStudy