Question

Write the expression without the fraction bar.

y to the 3rd power
--------------------------
y to the 7th power

Answer 1

`(y^3)/(y^7)=y^(3-7)=y^(-4)`

Answer 2

for problems like this you can move the y's on the bottem up top by fliping the sign of the exponent (in this case 7 to -7) and MULTIPLYING it with EVERYTHING on top, then because of properties of multplication you can add the exponents to combine them into one term (in this case add 3 and -7 to get -4)
`( y^(3) )/(y^(7))=y^3 *y^(-7) = y^(3+-7)=y^(3-7)=y^-4` If any of this does not make sense let me know and ill try to clarify better