# GED Math 5.3 Rational Numbers

GED Math 5.3 Rational Numbers. What operation would make the following expression undefined?

 Algebra Expressions Algebra and Functions Operations on Algebraic Expressions Basic Algebra Algebraic Expressions GED Math Rational Numbers Language English Language Mathematical Practice Mathematical Fluency Mathematics and Statistics Assessment Algebraic Expressions and Equations

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00:20

seven divided by ones Okay well let's assume this question

00:26

00:30

i'm not sure a triple bypass is gonna do the

00:31

trick here Instead we've got four options plus minus times

00:35

were divided by before we start plugging stuff in willy

00:38

nilly Let's ask ourselves what we're really trying to find

00:41

here What does it mean when something's undefined Well the

00:44

most common i'm defined thing you're going to have on

00:47

a test like fish is once something's divided by zero

00:51

You can't really divide something by zero no matter how

00:53

hard you try which is what makes an expression undefined

00:55

in first place In that case we can set up

00:57

a little equation one blank one equal zero with the

01:01

blank being the operation we're looking for so it should

01:04

be pretty obvious that one minus one is zero and

01:06

when we take seven divided by zero we're undefined which

01:09

is what we wanted So our answer is minus there 00:01:12.806 --> [endTime] that wasn't nearly painful is a triple bypass Oh