Question

Sarah uses 3/4 pound of blueberries to make 2/3 cup of jam. How many pounds of blue berries does she need to make 1 cup of jam

Answer 1

the ratio is 3/4 to 2/3   
change 2/3 to 1 since you are solving for 1 jar

now you have 3/4 =  x
                          2/3     1
2/3 divided by 2/3 = 1
3/4 divided by 2/3 = 1 1/8
1 1/8 is your answer