+78 find common factors on both the bottom and top - and them eliminate them
\(\frac{4x+8}{2x+16}\)
find common factors
\(\frac{2(2x+4)}{2(x+8)}\)
eliminate
\(\frac{2x+4}{x+8}\)
ta dah!
+10 By using it's recipricole like lets say you have 5 over 10 would divide it by the ricipricole 10 over 5
