Nicole and Winnie used the same number of blueberries to bake cakes. Nicole used
57 of her blueberries and Winnie used
47 of her blueberries. They had a total of 504 blueberries at first.
- How many blueberries did each girl use?
- How many blueberries did both girls have left altogether?
|
Nicole |
Winnie |
Total |
Before |
7x4 = 28 u |
7x5 = 35 u |
63 u |
Change |
- 5x4 = - 20 u |
- 4x5 = - 20 u |
|
After |
2x4 = 8 u |
3x5 = 15 u |
23 u |
(a)
Nicole and Winnie used the same number of blueberries to bake cakes. Make the numerators the same. LCM of 5 and 4 is 20.
5x47x4 of Mary's blueberries =
4x57x5 of Winnie's blueberries
2028 of Mary's blueberries =
2035 of Winnie's blueberries
Total number of blueberries at first
= 28 u + 35 u
= 63 u
63 u = 504
1 u = 504 ÷ 63 = 8
Number of blueberries that each girl used
= 20 u
= 20 x 8
= 160
(b)
Total number of blueberries that both girls had left
= 8 u + 15 u
= 23 u
= 23 x 8
= 184
Answer(s): (a) 160; (b) 184