Question

there are 3 grams of fiber in half cup of oatmeal. there are 1 and 1 eight cups of oatmeal left in a box.

determine the approximate number of grams of fiber left in the box. show your work with pictures and explain how you found the number of grams of fiber left.

Answer 1

There are 3 grams of fiber in 1/2 cup of oatmeal. Therefore, the number of grams of fiber in 1 (which is twice as large as 1/2) cup of oatmeal is:
3 g fiber *2= 6 g fiber.

There is 6 g fiber in 1 cup of oatmeal. Therefore, the number of fiber in 1 1/8 (which is 1 1/8 times as large as 1) cups of oatmeal is:
6 g fiber *(1 1/8)= 6.75 g fiber.

There is 6.75 g of fiber left in the box.

Hope this would help~

Answer 2

Answer=6 3/4 grams

 3 grams of fiber        x fiber
______________=_________
      1/2 cup              1 1/8 cup

Cross multiply
1/2x=3 3/8
divide both sides by 1/2
x=6.75 or 6 3/4
There is 6 3/4 grams of fiber in 1 1/8 cups of oatmeal.