Elyse made some croissants. She sold ²₅ of them in the morning and ⁴₉ of the remainder in the evening. If she sold 12 more croissants in the morning than in the evening, how many croissants did she make altogether?

Morning	Remainder		Total
2x3	3x3		5x3
	Evening	Left
	4	5
6 u	4 u	5 u	15 u

Fraction of croissants left after selling some in the morning
= 1 - ²₅ 
= ³₅

Fraction of croissants sold in the evening
= ⁴₉ x ³₅
= ⁴₁₅

Make the denominators the same.
 ²₅ = ⁶₁₅ 

Number of croissants that Elyse sold in the morning = 6 u
Number of croissants that Elyse sold in the evening = 4 u

Number of more croissants that Elyse sold in the morning than in the evening
= 6 u - 4 u
= 2 u

2 u = 12

1 u = 12 ÷ 2 = 6

Total number of croissants that Elyse made
= 15 u
= 15 x 6
= 90

Answer(s): 90