When the denominator is a factor of the numerator. If there is 2x in the numerator and denominator these terms cancel.
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0.454545 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its equivalent, in rational form, is 454545/1000000. You can simplify this rational fraction if you so wish.
you can add your integers as addition and round them to simplest form.
3x+3-2x=3 x+3=3 x-0
4x + 3y - 2x - 7y2x - 4y
Well, let's take a moment to appreciate the beauty of this expression. To simplify it, we can combine like terms. So, when we add 3a8 and 5a8, we get 8a8. Then, when we subtract 8a from that, we end up with a final answer of 8a8 - 8a.