Selling the gf's house soon and there's some cracking in the bathroom floor grout due to age (no excess movement in the floor). Looks to just be around a few tiles but it's in the highest used/visible spot. What's the best (selling the house so we're looking for the cheap option) way to go about fixing this?
	
		
			
		
		
	
				
			 
	 
  
  
  
  
  
  
  
  
 
		
 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
  
  
  
  
 