Adding Fractions
Adding unlike fractions:
1/2 + 7/12
13/12
Subtract unlike fractions:
5/9 - 1/3 =
2/9
Convert mixed numbers to fractions
5 3/5
28/5
Fractions x whole numbers:
3/5 x 3
9/5 or 1 4/5
The class is making clay pots. 3/4 of the students made pinch pot bowls. 1/2 of those students put a handle on the pot. How many had handles?
Which operation is the question asking you to do? Justify your answer.
Multiplication because we are scaling down the amount of students who made a pinch pot bowl by 1/2. It says 1/2 of THOSE student and "those students" can be replaced by 3/4.
Adding unlike fractions:
7/9 + 3/18 =
17/18
Subtract unlike fractions:
3/24 - 3/12 =
3/24 or 1/8
Fractions to mixed numbers:
9/5
1 4/5
Fraction multiplication:
4/7 x 4/3 =
16/21
The 300 students were running the turkey trot. Out of 15 winners, 2/3 of the winners were girls. How many were not girls.
Which operation would you use to solve? Justify your answer.
This is a two step question. You have to multiply first to scale down the winners by 2/3. Then you have to subtract that number from the total of winners to find out how many were not girls.
Adding fractions
8/10 + 3/5 =
14/10 or 1 2/5
Subtract like fractions
17/18 - 12/18 =
5/18
Equivalent fractions (2 fractions)
3/4 = 6 /_
6/8
Multiplying fractions
3/4 x 5/8
15/32
Random team gets to select a point post-it.
Yay!
Adding unlike fractions
5/15 + 1/5 =
8/15
Subtract unlike fractions
3/4 - 1/2
1/4
Simplify fractions:
15/50
3/10
Multiplying whole numbers and fractions
4 x 3/4 =
12/4 or 3
There were 3 1/2 dozen cupcakes at the party. There were 2 3/4 dozen cookies. If there are 80 students at the party. Will every student get a sweet treat?
What operation will you have to use to solve? Justify your answer.
This is two step because first you have to add to find out the total number of treats. Then you have to find the difference from that total and 80 to find out if everyone will get a treat.
Adding unlike fractions
3/9 + 4/27 =
13/27
Subtracting unlike fractions
15/16 - 7/8
1/16
Find common denominators for the following fractions:
2/6 and 1/4
4/12 and 3/12
Multiplying fractions
4 2/3 x 3/4 =
3 1/2
Random group gets to pull a points post-it!
Yay!!