1) What you see as 3
can be also changed to only a fraction, by changing 
to 
, but since the question wants 2 as a whole number, we must take out 
and then add the 8 eights to the other 3, to get <span>
</span>for # 10- 13, you need to have the same number on the bottom of all the numbers being subtracted, that means turning the number that aren't fractions (like 4) into fraction, and then into fractions with the same denominators.
10)
changes to 
to get 
or 
11)
changes to 
, and 
to 
to get 
or <span>
</span>
</span>for # 10- 13, you need to have the same number on the bottom of all the numbers being subtracted, that means turning the number that aren't fractions (like 4) into fraction, and then into fractions with the same denominators.
10)
11)