Adding and Subracting Fractions
To add and subtract fractions one must first find the Least Common Denominator (LCD)
For example the LCD of and is 15. To get to have the same denominator we must
multiply the numerator and denominator of by 3. So that we have . Now we can add
together and . We get that:
Remember: A whole number , x, can be represented as
Problems: For 1 thru 5 just solve and simplify . For 6 thru 10 solve for x and simplify.