Question

At her birthday party, marcie's guests ate 2/3 of her birthday cake and her family ate 1/4 of the cake. How much cake was left after her party?

Answer 1

Answer:

1/12

Step-by-step explanation:

So you start with an equation. 2/3 plus 1/4= ?.

Step 1: Find a common donominator.

Count by each number until they meat up.

3 6 9 12

4 8 12

Step 2: Multiply.

Basically, make sure that if you do something to the bottom you do the same to the top. You have

$\frac{2}{3}$  = $\frac{?}{12}$. 3 times 4 is 12. 2 times 4 is 8. Your new fraction is $\frac{8}{12}$.

$\frac{1}{4}$ = $\frac{?}{12}$. 4 times 3 is 12. 1 times 3 is 3. Your new fraction is $\frac{3}{12}$.

Step 3: Just Add!

$\frac{8}{12} + \frac{3}{12}= \frac{11}{12}$

Step 4: Answer the question! The question asks "How much cake is left. You know that a whole cake is $\frac{12}{12}$. So, $\frac{12}{12} -\frac{11}{12} = \frac{1}{12}$