Arrange the following rational numbers in descending order #2/3," "4/9," "5/12," "7/18?#

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Answer 1 · 2018-03-24T16:40:58

#2/3>4/9>5/12>7/18#

To evaluate these without a calculator, you could modify each fraction to have a common denominator.

In this case, let's use 36 as the common denominator, since all 4 of the denominators are factors of 36.

#2/3=2/3*12/12=24/36#

#4/9=4/9*4/4=16/36#

#5/12=5/12*3/3=15/36#

#7/18=7/18*2/2=14/36#

Now it's easy to see that

#24/36>16/36>15/36>14/36#