\
The difference is
\ \
Find the Least Common Multiple of 4 and 8.
\Multiples of 4:
\ \
Multiples of 8: 
The least common multiple of 4 and 8 is 8, the LCD is 8.
\Rewrite each fraction using the least common denominator (LCD).
\
(LCM is 8)
(Multiply:
)
(Subtract:
)
The difference is
.