Eric has a 4 pound watermelon, 2 1/2 pounds of oranges, 3 pounds of apples, and a 1 1/2 pounds of grapes to make a fruit salad. How many pounds of fruit does he have in all?
1. 3
2. 10 1/2
3. 11
4. 15 1/2
Jeremy is baking a wedding cake and wants to be sure that he has enough flour. He needs a full bag of flour. He has one flour bag that is 5/9 full and another flour bag that is 2/9 full. How much flour does he have?
1. 7/9
2. 7/18
3. 10/81
4/ 3/9
What don't you understand about these problems?
How I'm suppose to solve them?
Like should I subtract, add, multiply
Add
1. 11 ?
2. 7/9 ?
Yes. Both of your answers are correct.
To find the total weight of fruit in Eric's fruit salad, we need to add the weights of the watermelon, oranges, apples, and grapes.
- The watermelon weighs 4 pounds.
- The oranges weigh 2 1/2 pounds.
- The apples weigh 3 pounds.
- The grapes weigh 1 1/2 pounds.
To add mixed numbers, we need to convert them to improper fractions with the same denominator.
- 2 1/2 is equal to (2 * 2 + 1) / 2 = 5/2.
- 1 1/2 is equal to (1 * 2 + 1) / 2 = 3/2.
Now, we can add the weights:
4 + 5/2 + 3 + 3/2
To add fractions, we need a common denominator, which is 2:
4 + (5/2 * 2/2) + 3 + (3/2 * 2/2)
= 4 + 10/4 + 3 + 6/4
Add the fractions:
= 4 + 10/4 + 3 + 6/4
= 4 + (10 + 6) / 4
= 4 + 16/4
= (4 * 4 + 16) / 4
= 20/4
= 5
Therefore, Eric has a total of 5 pounds of fruit.
The correct answer is option 3. 11 pounds.
Now let's solve Jeremy's baking question.
- One flour bag is 5/9 full.
- Another flour bag is 2/9 full.
To find the total amount of flour, we can add the fractions:
5/9 + 2/9
Since the denominators are the same, we can add the numerators:
5 + 2 = 7.
The denominator remains the same: 9.
So, the total amount of flour Jeremy has is 7/9.
Therefore, the correct answer is option 1. 7/9.