1/5
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-1/5 is the reciprocal of -5
The reciprocal of a number is 1 over the number or 1 divided by the number. EXAMPLE : The reciprocal of 5 is 1/5. The reciprocal of 18.7 is 1/18.7. A fraction can also have a reciprocal : The reciprocal of 1/5 is 5 (or 5/1) The reciprocal of 18/23 is 1/18/23 = 23/18.
The reciprocal of 5/8 is 8/5.
2.2
5 and 4/5 = 29/5 and reciprocal = 5/29