Question

The recipe calls for 4 3/4 cups of flour of flour she has 2 2/3 how much more flour does she need?

Answer 1

Answer:

2 1/12 more flour

Step-by-step explanation:

so we need to find the difference of the two so we do 4 3/4- 2 2/3, but we need to find the common denominater which is 12. now it becomes 4 9/12 - 2 8/12(because we multiply 3/3 to 3/4 and 4/4 to 2/3) which becomes 2 1/12 because 4-2 is 2 and 9/12- 8/12  is 1/12.

Answer 2

Answer:

Step-by-step explanation:

4 3/4 - 2 2/3 = ?

 

When adding or subtracting fractions, the denominators must be the same.  We need to find a common denominator for the fractional portions of each mixed number.  In other words, we are looking for equivalent fractions for 3/4 and 2/3.  By listing the multiples of 4 and 3, we see that 12 is common to both numbers do we can use 12 as our common denominator.

 

4, 8, 12, 16, 20...

3, 6, 9, 12, 15....

 

4 3/4  If we multiply the numerator and denominator by 3, our equivalent fraction is 4 9/12.

2 2/3  If we multiply the numerator and denominator by 4, our equivalent fraction is 2 8/12.

 

Now we can subtract

 

4 9/12 - 2 8/12 = 2 1/12.

 

So Cameron needs an additional 2 1/12 cups of flour.