Frankly, that question doesn't make sense, and sounds perhaps as if you're trying to get answers to your math homework.
the answer is to the question ' Marcia has seven eights of a pound of candy she gives two fifths of it to lucinda how much candy does she have left?' is five thirds left.
As an improper fraction in its simplest form it is: 43/25
0.75 as a fraction in its simplest form is 3/4
3.5
0.66 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 66/100 which can be simplified, if required. As a percentage, it is 66% and one reason not to simplify the rational form is that the conversion to percentage is so much simpler if it is left with the denominator as 100.
1 fourth dumb a ss
The ejection fraction is a measure of how much blood the heart can pump. The left ejection fraction is how much blood the heart can pump out into the body (as opposed to into the lungs.) 40-50% is a below-normal ejection fraction.
0.74 as a fraction is 74/100 and is 37/50 when simplified
-1.64 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. And, being a decimal, there is no simpler form. Its rational equivalent is -164/100 which can be simplified to -41/25 but by simplifying you lose much information about the accuracy of the number.
It is 1/4 of a pound.
92/100
It is the same as 0.05 or as fraction in its simplest form 1/20