While I am away use these videos to help you complete your math homework each night:

ADDING AND SUBTRACTING FRACTIONS - PAY ATTENTION TO THE DENOMINATORS!:
https://www.mathsisfun.com/fractions_addition.html

Adding fractions with like denominators is easy, but remember if  your fractions don't have like denominators you MUST convert one or both of the fractions in the addition or subtraction problem.

You'll have to find EQUIVALENT fractions.

Rewrite your addition or subtraction problem with fractions that have the same denominator, then solve.

FINDING EQUIVALENT FRACTIONS:
http://www.mathsisfun.com/equivalent_fractions.html

The link to the videos on these sites looks like this:

It's in the upper left hand corner of the page.