this is the 5th grade problem. This is exactly what I have.
Rosa and her friends used 1 2/3 quart of paint on Monday and 1 3/4 quart of pain on Tuesday.How much paint will Rosa and her friends need on Wednesday.If Rosa If Rosa and her friends have 3/4 quart of pain left, do they
have enough pain to finish the job on Wednesday?
There is NO more information.
My answer : On Wed they need 1 4/5(because Mon-1 2/3, Tue 1 3/4). 3/4 is not enough.(3/4 less then 1 4/5)Is it correct?
done below.
your eventual solution is correct.
Yes, your answer is correct. To find out how much paint Rosa and her friends need on Wednesday, we add the amount of paint they used on Monday and Tuesday.
On Monday, they used 1 2/3 quarts of paint, which can be written as 5/3 quarts.
On Tuesday, they used 1 3/4 quarts of paint, which can be written as 7/4 quarts.
To find the total amount of paint used, we need to add 5/3 and 7/4. To do this, we first need to find a common denominator. The least common multiple of 3 and 4 is 12.
So, we convert 5/3 to have a denominator of 12 by multiplying both the numerator and denominator by 4:
5/3 * 4/4 = 20/12
We convert 7/4 to have a denominator of 12 by multiplying both the numerator and denominator by 3:
7/4 * 3/3 = 21/12
Now, we can add 20/12 and 21/12:
20/12 + 21/12 = 41/12
Therefore, Rosa and her friends need 41/12 quarts of paint on Wednesday, which can be simplified to 1 5/12 quarts.
Given that they have 3/4 quart of paint left, we need to compare this with the amount needed on Wednesday.
To do this, we need to convert 1 5/12 quarts to a common denominator of 4:
1 5/12 * 4/4 = 9/4
As 3/4 is less than 9/4, Rosa and her friends do not have enough paint to finish the job on Wednesday.