I have fraction word problem made from a recipe. If it takes 2 1/2 cups of oatmeal to make 30 cookies. How much oatmeal will it take to make 120 cookies?
Since 30 x 4 = 120, you must then multiply 2 1/2 by 4 to find out.
30 can go into 120 4 times. So you have to multiply the 2 1/2 cups 4 times.
2 1/2 x 4 = your answer!
hope this helped!
They are both right. The easiest way to do this is to make a proportion, though. 2.5/30=x/120, Cross multiply 30x=300, solve for x.
To solve this fraction word problem, we can use a proportion to determine the amount of oatmeal needed to make 120 cookies.
First, let's set up the proportion using the given information:
(2 1/2 cups) / 30 cookies = x cups / 120 cookies
To solve for x, we can cross-multiply:
(2 1/2) * 120 = 30 * x
Next, simplify both sides of the equation:
(5/2) * 120 = 30 * x
Multiply:
(5 * 120) / 2 = 30 * x
Now, simplify the left side of the equation:
(600) / 2 = 30 * x
Divide:
300 = 30 * x
To isolate x, divide both sides by 30:
300 / 30 = x
Therefore, x = 10.
So, it will take 10 cups of oatmeal to make 120 cookies.