Cindy made 28 more strawberry croissants than pandan croissants. After she gave away ²₇ of the strawberry croissants and ¹₇ of the pandan croissants, there were an equal number of strawberry croissants and pandan croissants left. How many strawberry croissants did she give away?

	Strawberry croissants	Pandan croissants	Difference
Before	7x6 = 42 u	7x5 = 35 u	7 u
Change	- 2x6 = - 12 u	- 1x5 = - 5 u
After	5x6 = 30 u	6x5 = 30 u

Fraction of strawberry croissants left
= 1 - ²₇
= ⁵₇

Fraction of pandan croissants left
= 1 - ¹₇
= ⁶₇

The number of strawberry croissants and pandan croissants in the end is the same. Make the numerators the same.  LCM of 6 and 5 is 30.

⁵₇ of strawberry croissants = ⁶₇ of pandan croissants
³⁰₄₂ of strawberry croissants = ³⁰₃₅ of pandan croissants

Number of more strawberry croissants than pandan croissants at first
= 42 u - 35 u
= 7 u

7 u = 28

1 u = 28 ÷ 7 = 4

Number of strawberry croissants that Cindy gave away
= 42 u - 30 u
= 12 u
= 12 x 4
= 48

Answer(s): 48