Oscar had some chocolate chip puffs and strawberry puffs. ²₅ of the number of chocolate chip puffs was equal to ¹₇ of the number of strawberry puffs. After Oscar made 48 more chocolate chip puffs, the number of chocolate chip puffs was ³₂ of the number of strawberry puffs. How many puffs did he have altogether in the end?
Make the numerators the same. LCM of 2 and 1 is 2.

25 of chocolate chip puffs = 1x27x2 of strawberry puffs

²₅ of chocolate chip puffs = ²₁₄ of strawberry puffs

	Chocolate chip puffs	Strawberry puffs	Total
Before	5 u	14 u
Change	+ 48
After	3x7 = 21 u	2x7 = 14 u	35 u

The number of strawberry puffs remains unchanged.  Make the number of strawberry puffs the same.  LCM of 2 and 14 is 14.

Number of more chocolate chip puffs made
= 21 u - 5 u
= 16 u

16 u = 48

1 u = 48 ÷ 16 = 3

Number of puffs that Oscar had in the end
= 21 u + 14 u
= 35 u
= 35 x 3
= 105

Answer(s): 105