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# -5/6 +(-5/18)=?

sturggling with fractions

Since you are adding a negative, you can take away the addition sign and the parentheses to make it look like this: -5/6 - 5/18

In order to subtract, you need to find a common denominator: 6 goes into 18, so 18 is your common denominator. You multiply the numerator and denominator of -5/6 by 3 so you can have a fraction with a denominator of 3: -5/6 * 3/3 = -15/18

Your new equation should be: -15/18 - 5/18

Now you subtract the numerators across and keep the denominator the same:

Numerator = -15 - 5 = -20

If your teacher asks you to simplify your answer, you would divide by a multiple of both 20 and 18. The best number to divide by would be 2:

Numerator: -20/2 = -10

Denominator: 18/2 = 9

To find the mixed fraction, you would divide -10 by 9 and place the remainder as your numerator:

-10/9 = -1  1/9

Thank you so much. This makes perfect sense.
i got those same answers but... That is not one of my choices so im kinda lost!

Rewrite fractions with the same denominator (preferably the lowest factor for both numbers.  This is 18 in his case.

-5/6 + (-5/18) = -15/18 + (-5/18)

Now that we have done that we can add the numerators  and place the answer over the denominator.

-15 + (-5) = -20/18

The answer then is -1and 2/18 or -1and 1/9if we want the answer as a mixed number.

Hope that helps!