1. Addition and Subtraction of Fractions
Problems of the day: 2/9 + 4/9 =
1/3 + ¼ =

2. Like denominators 2/9 + 4/9
2 /9 + 4/9 = 2+4/ 9 Keep the denominators the same. Add the numerators.
6/9 = 6÷3/9÷3 = 2/3 Simplify.

3. Different Denominators
4/5 + 2/3
Find a common denominator 15
4/5= 12/15 Get the equivalent fractions
2/3 = 10/15
12/ /15 = 22/15
22/15 = 1 7/15

4. You try it.
Add 3/5 + 1/5
7/8 + 3/8
1/3 + 1/8
¾ + 1/6
4/5 + 1/3

5. Subtract fractions
2/5 – 1/5 = 1/5 Keep the denominator. Subtract the numerator.
¾ - 1/3 Get a common denominator 12
Get the equivalent fraction.
¾ = 9/12, 1/3 = 4/12
9/12- 4/12 = 5/12

6. Homework p
Good luck with your homework.