15 to the negative 5th power as a fraction can also be written as 1/15 to the 5th power.
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One-fifth or 20%
One fifth = 1/5 Multiply the numerator (top) and the denominator (bottom) of the fraction by any non-zero integer. You will have an equivalent fraction.
1
Expressed as a proper fraction in its simplest form, 1/5 - 1/3 = -2/15 or negative two fifteenths. Expressed as a decimal, this is equal to -0.13 recurring (that is, -0.13333...)
By dividing the numerator and denominator of the fraction by 3, 3/15 can be simplified to 1/5 or one fifth.