Question

cho used 2 1/3 cups of flour to bake a cake. she used 3 1/4 cups of flour to bake a loaf of bread. how much more flour did cho use to bake the loaf of bread than to bake the cake?

Answer 1

Answer:

Hence, she used 11/12 cups of more flour  to bake the loaf of bread than to bake the cake.

Step-by-step explanation:

It is given that:

Cho used 2 1/3 cups of flour to bake a cake.

i.e. in simple fraction the amount of flour she used to baker the cake is given by:

$2\dfrac{1}{3}=\dfrac{2\times 3+1}{3}\\\\i.e.\\\\2\dfrac{1}{3}=\dfrac{7}{3}\ cups$

and  she used 3 1/4 cups of flour to bake a loaf of bread

and in simple fraction the amount of cups of flour she used to bake a loaf of bread is:

$3\dfrac{1}{4}=\dfrac{3\times 4+1}{4}\\\\i.e.\\\\3\dfrac{1}{4}=\dfrac{13}{4}\ cups$

Hence, the extra quantity of flour that she use to bake the loaf of bread than to bake the cake is:

$=\dfrac{13}{4}-\dfrac{7}{3}\\\\\\=\dfrac{13\times 3-7\times 4}{4\times 3}\\\\\\=\dfrac{39-28}{12}\\\\\\=\dfrac{11}{12}\ cups$

Answer 2

3 1/4 - 2 1/3 = 
13/4 - 7/3 = 
39/12 - 28/12 = 
11/12