Gabby and Zara used the same number of blueberries to bake cakes. Gabby used
37 of her blueberries and Zara used
58 of her blueberries. They had a total of 354 blueberries at first.
- How many blueberries did each girl use?
- How many blueberries did both girls have left altogether?
| |
Gabby |
Zara |
Total |
Before |
7x5 =
35 u |
8x3 =
24 u |
59 u |
Change |
- 3x5 =
- 15 u |
- 5x3 =
- 15 u |
|
After |
4x5 =
20 u |
3x3 =
9 u |
29 u |
(a)
Gabby and Zara used the same number of blueberries to bake cakes. Make the numerators the same. LCM of 3 and 5 is 15.
3x57x5 of Mary's blueberries =
5x38x3 of Zara's blueberries
1535 of Mary's blueberries =
1524 of Zara's blueberries
Total number of blueberries at first
= 35 u + 24 u
= 59 u
59 u = 354
1 u = 354 ÷ 59 = 6
Number of blueberries that each girl used
= 15 u
= 15 x 6
= 90
(b)
Total number of blueberries that both girls had left
= 20 u + 9 u
= 29 u
= 29 x 6
= 174
Answer(s): (a) 90; (b) 174
