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March 27, 2017

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compare < > =

1) - 1/7 -6/7
i got : <

2) -3/4 -3/8
i got: <

3) - 1/2 - 2/10
i got : >

4) - 3/4 -1
i got: <

5) - 1/2 - 5/6
i got: <

6) -4/5 -1/3
i got: >

7) 5.2 > -8.3

8) -6.5 > 6.2

9) -4.9 > -4.3

10) 1.09 < -1.90

11) -1.22 < -6.5

12) -10.2 < -10.23

are these correct?

  • algebra rational numbers - ,

    1) - 1/7 -6/7
    i got : < ----------- no, -1/7 is to the right of -6/7 on the number line

    2) -3/4 -3/8
    i got: < --------- ✔

    3) - 1/2 - 2/10
    i got : > -------- no, -1/2 is to the left of -2/10 , so it is smaller

    4) - 3/4 -1
    i got: < --------- no , -3/4 is to the right of -1

    5) - 1/2 - 5/6
    i got: < --------- no

    6) -4/5 -1/3
    i got: > ------- no

    7) 5.2 > -8.3 --- ✔

    8) -6.5 > 6.2 --- no

    9) -4.9 > -4.3 --- no

    10) 1.09 < -1.90 ---no

    11) -1.22 < -6.5 --- no

    12) -10.2 < -10.23 --- no

    You seem to be missing the concept here
    Have you drawn a number line ?

    Comparing two positives should give you no problem, since you would say
    larger > smaller

    If one is +, the other negative, that is even easier, obvious
    positive > negative in all cases

    here is a neat method to make sure you get the 2 negative case correct
    e.g. #11) -1.22 and -6.5
    write them down as positives without any >or<
    1.22 ..... 6.5
    it should be easy to see which sign belongs, in this case the <
    so 1.22 < 6.5
    then --------- -1.22 > -6.5 (notice I reversed the < sign to > )

    try that method on those you missed and you will see why you were wrong.

  • algebra rational numbers - ,

    now here is the example from school notes:
    - 3/4 ad - 1/2
    compare < > =

    -3/4 becomes -.75 and
    - 1/2 becomes -.5

    so -75 is < -.5 is that right?

  • algebra rational numbers - ,

    reiny could you see what dana posted she said all but 1 was wrong im confused
    no #2 was wrong it s/b >

  • algebra rational numbers - ,

    Yes, your last example is done correctly
    It looks like your teacher wants you to change the fractions to decimals and the consider where they are on the number line
    the -.75 would be to left of -.5 , so it is smaller and
    -.75 < -.5
    -3/4 < -1/2

    Notice you will get the same result if you do it my way.

    You obviously did not follow your own example when you did all those questions

  • algebra rational numbers - ,

    im sorry i will redo this its getting confusing. your right im not really following i was out sick yesterday and will go in early tomorrow
    im sorr

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