Steps
What is the first step when adding or subtracting fractions with unlike denominators?
Find the common denominator (LCM)
Take 500 points from another team...
2 1
____ + ____ =
3 4
11
___
12
Guess a number...for deci-plexi!
1 1
____ - ___ =
3 4
1
___
12
Swap points with the second place team...If you are in second place, swap points with the first place team!
Harold's Chicken has this. No other restaurant has this. They say they may have it, but not like Harold's!!!!
Mild Sauce!!!!
Deci-Plexi!
What is a denominator?
The number underneath the line in a fraction
Extra turn and swap points with the winning team if you are not winning...
What is the second step when adding or subtracting fractions with unlike denominators?
Write equivalent fractions with your new denominator
3 2
____ + ___ =
4 3
5
1 ____
12
2 1
____ - ___ =
3 5
7
____
15
1 1
4 ____ + ___ =
3 2
5
4 ____
6
What is a numerator?
The number above the line in a fraction
What is the third step when adding or subtracting fractions with unlike denomiantors?
Add or subtract the numerator (keep the denominator)
4 3
____ + ___ =
5 4
11
1 ____
20
Triple Whipple!
1 1
____ - ___ =
2 5
3
____
10
3 2
____ + 3 ___ =
5 5
4
What does equivalent mean?
Equal in value or same amount
Double Wobble!
What is the fourth step when adding or subtracting fraction with unlike denomiantors?
Simplify the fraction if needed
Double Wobble and extra turn!
6 5
____ + ___ =
7 6
29
1 ____
42
4 2
____ - ___ =
5 3
2
____
15
Quadruple Beautiful!
1 4
3 ____ - ___ =
5 6
8
2 ____
15
What does simplify mean?
To reduce a fraction to it's simplest form
Mr. Vines' favorite TV Show...
If you get this right, everyone on your team gets $5 and pizza...
The Cosby Show...
Deci-Plexi!!!
5 7
____ + ___ =
7 8
33
1 ____
56
Give 1,000 points to another team!
5 1
____ - ___ =
7 3
8
____
21
Take 1,000 points from another team!
2 2
4 ____ - 3 ___ =
6 3
2
____
3
What is a common denominator?
two or more fractions have the same denominator
Take 500 points from another team!