I will not be in school today due to the math competition. But, I have left a new lesson for the sub to teach. The kids will be adding and subtracting fractions with like and unlike denominators. Sounds easy right...here's the catch. It will be including negative ones as well. So...don't forget these rules. When you are adding integers or rational numbers:
1. negative + negative = negative
2. positive + positive = positive
3. negative + positive = you subtract the smallest number from the biggest number and keep the sign of the one with the greatest absolute value. ***this works no matter which one is positive and which one is negative.
The other thing you need to remember is that when adding and subtracting fractions, you must first get a common denominator.
Have a thoroughly awesome Thursday!