Word Problems
The Jones family is making fruit punch. They mix 1/5 orange juice, 2/5 apple juice, and 2/5 pineapple juice. What fraction represents the total amount of apple and pineapple juice combined?
4/5
3/12 + 4/12
7/12
1/2 + 1/4
3/4
What is the "numerator"?
The number on top of a fraction
Molly has 1/3 of a chocolate bar. She eats another 1/6 of the bar. What fraction of the chocolate bar does she have left?
1/6
5/7 + 6/7 + 3/7
2 (14/7)
3/2 + 2/8
(7/4) 14/8
What is the "denominator"?
The number on the bottom of a fraction
Lisa has a ribbon that is 3/8 yards long. She cuts off 1/4 of it for a craft project. What is the length of the remaining ribbon?
1/8 yards
3 + 1/2 - 1/4
3 1/4 (13/4)
3 - 1/2 + 1/4
2 3/4 (11/4)
What is a "common denominator"?
When the denominator for 2 or more fractions is the same.
Ethan is baking cookies. He uses 3/4 cup of flour for one batch and 1/5 cup for another. How much flour did he use in total?
2/5 - 6/25 + 1/5 - 4/10
-1/25 (-2/50)
3/7 + 4 - 5/3
58/21
What does it mean if 2 fractions are "equivalent"? And how do you check?
They have the same value, you can cross-multiply
The Smith family is making a fruit salad. They mix 2/3 cup of strawberries, 1/4 cup of blueberries, and 4/8 cup of grapes. What is the total amount of fruit in the salad?
17/16 (34/32) cups of fruit
7/9 - 1/4 + 1 - 3/18
49/36
5/2 - 1 + 3/8 + 7/4 - 2/16
7/2 (56/16)
What does "simplify" mean when talking about fractions? How do you do it?
To reduce a fraction to it's simplest form, you divide both the numerator and denominator by the greatest common divisor.