As some of you know I'm trying to get a handle on basic math and some algebra before I take the only part of the placement test I have to take before I start back to school.

Fractions, namely the addition and subtraction of said fractions, have been my nemesis. Well, I'm happy and encouraged to report that I have the basics down as far as addition and subtraction of fractions. The wrench in the works is when they involve mixed numbers and borrowing from mixed numbers. I've been working at these for a while and it isn't sinking in.

Could someone be so kind as to walk me through these two examples? I know I have to find a common denominator but I keep ending up with a numerator that is larger than the denominator in my mixed number (for the addition problem). I'm not sure what I'm doing wrong.

1)2 3/4 + 3 3/8=

2)14 1/8 - 13 3/4=

Thank you!

Fractions, namely the addition and subtraction of said fractions, have been my nemesis. Well, I'm happy and encouraged to report that I have the basics down as far as addition and subtraction of fractions. The wrench in the works is when they involve mixed numbers and borrowing from mixed numbers. I've been working at these for a while and it isn't sinking in.

Could someone be so kind as to walk me through these two examples? I know I have to find a common denominator but I keep ending up with a numerator that is larger than the denominator in my mixed number (for the addition problem). I'm not sure what I'm doing wrong.

1)2 3/4 + 3 3/8=

2)14 1/8 - 13 3/4=

Thank you!