Write as a division:
Invert the second fraction and change the division symbol to
multiplication:
Factor the left numerator by taking out :
Indicate the multiplication of numerators and denominators:
Rearrange the factor on the top and multiply the
by the getting
Divide the 6 and the 4 by 2
Divide the in the top by the in the
bottom, getting in the top:
Cancel the in the top and bottom
Cancel the in the top and bottom:
All that's left is
Edwin