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subtract. express in simplest form

13x/30 - 4x/ 15 =

factor the first denominator. Get a common denominator. Combine terms.

I will be happy to critique your work.

ok
13x/30 - 4x/ 15 = This is where I get lost, I know that I have to fins the LCD but when I do that it looks like this for me
30= 2.3.5
15= 3.5
where to I go from here I have one 2, 2 3's and 2 fives.

13x/30 * 1/1= 13x/30
41/15* 2/2 = 8x/30
13x/30 - 8x/ 30 = 5x/30 = x/6
Am I getting this

1 answer

Yes, you are correct! The expression simplifies to x/6. Good job!
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