The Opposite of Fractions

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Opposites can be thought of in a couple of different ways. Learn about the opposite of fractions with help from a mathematics educator in this free video clip.

Part of the Video Series: Fractions 101
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Video Transcript

Hi. I'm Jimmy Chang and we're here to talk about the opposite of fractions. Now opposites can be thought of a couple of different ways. Really the addition opposite or the multiplication opposite. So lets talk about both and then we'll go from there. Now when it comes to addition opposites, often times we're talking about the number that's opposite in sign. So if you have 3/4 as an example, the addition opposite of 3/4 would be -3/4 or if the number was negative, if you have -10/11 the addition opposite of it would be positive 10/11. Now when it comes to multiplication opposites you have, lets just say 3/4 then more often than not you're referring to the reciprocal. The flip of the fraction itself. So the reciprocal of 3/4 would be you flip the 3 and the 4, it becomes 4/3 or if the number was negative, you have, lets just say -21/22, then the reciprocal of that would be you flip it, it would be -22/21 maintaining the signs. So depending on the context the opposite of fractions can be expressed in these ways. So I'm Jimmy Chang and that's the opposite of fractions.


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