Trinh is catering a wedding that 112 people will attend. She is making two cakes, a chocolate cake and a carrot cake.5/8 of the guests will be served chocolate cake and the rest will receive carrot cake. How many guests will get carrot cake?

26

42

50

70

Question

Trinh is catering a wedding that 112 people will attend. She is making two cakes, a chocolate cake and a carrot cake.5/8 of the guests will be served chocolate cake and the rest will receive carrot cake. How many guests will get carrot cake?



26



42



50



70

mathmale · Answer

Determine how many eat choco cake.  That's (5/8)ths of the whole.  Multiply what number by (5/8)?
Subtract your result from the total number of guests to determine how many eat carrot cake.

Or, start with the info that (5/8)ths of the guests have choc. cake.  That means that 

1 - (5/8), or (3/8), of the guests will have carrot cake.

Mult. the total number of guests by this last result.

dmbroussard1978 · Answer

Use Simplify criss cross multiplication for fractions and subtraction to determine the amount of carrot cake 
5/8 × 112/1 = number of chocolate 
Total number of cake - number of chocolate = number of carrot