



Write the first term as a division:






Invert the
and change the division sign before it
to a multiplication sign:






Cancel the 3 into the 12 getting






Multiply the 2 by the 4, getting 8, and put that over 7
for the first term:




Combine the first two terms
which gives


The least common denominator of
and
is
So we multiply
by
and get
and we multiply
by
and get


Now add the numerators getting
and place that
over the LCD of
If your teacher accepts improper fractions, leave it like
that, or change it to a mixed number
Edwin