-0.4 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 rational equivalent is -4/10 which can be simplified, if required.
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Yes. Fractions can be both positive and negative. Here are some examples that shows how a negative fraction is possible. 1/4 = .25 = 1 - .75 = 0 + .25 - 1/4 = - .25 = 1 - 1.25 = 0 - .25 this is true
4/10
4
yes it is a negative fraction
Any non-zero fraction is the same as its reciprocal raised to the power of -1.So 3/4 = (4/3)-1 and there you have your negative exponent!