Irene used ³₄ of her yellow stickers and ³₇ of her brown stickers to decorate her diary. In the end, she had an equal number of yellow stickers and brown stickers left. Given that Irene had a total of 184 yellow and brown stickers at first, how many brown stickers did she use to decorate the diary?

	Yellow stickers	Brown stickers
Before	4x4 = 16 u	7x1 = 7 u
Change	- 3x4 = - 12 u	- 3x1 = - 3 u
After	1x4 = 4 u	4x1 = 4 u

The number of yellow stickers and brown stickers in the end is the same.  Make the number of yellow stickers and brown stickers in the end the same.  LCM of 1 and 4 is 4.

Total number of stickers that Irene used to decorate the diary
= 16 u + 7 u
= 23 u

23 u = 184

1 u = 184 ÷ 23 = 8

Number of brown stickers that Irene used to decorate the diary
= 3 u
= 3 x 8
= 24

Answer(s): 24