Mrs. Collin has 140 apples. She uses 2/5 of them to bake a pie and 1/4 of them to make jam. How many apples does she have left?
To find out how many apples Mrs. Collin has left after using some of them, we need to calculate the total number of apples used for baking a pie and making jam, and then subtract that from the initial number of apples.
Step 1: Calculate the number of apples used for baking a pie.
- The fraction used for baking a pie is 2/5.
- To find the actual number of apples used for baking a pie, we multiply the fraction (2/5) by the total number of apples (140):
(2/5) * 140 = 2 * 140 / 5 = 280 / 5 = 56 apples used for baking a pie.
Step 2: Calculate the number of apples used for making jam.
- The fraction used for making jam is 1/4.
- To find the actual number of apples used for making jam, we multiply the fraction (1/4) by the total number of apples (140):
(1/4) * 140 = 1 * 140 / 4 = 140 / 4 = 35 apples used for making jam.
Step 3: Calculate the number of apples Mrs. Collin has left.
- To find out how many apples she has left, we subtract the sum of the apples used for baking a pie (56) and making jam (35) from the total number of apples (140):
140 - (56 + 35) = 140 - 91 = 49 apples left.
Therefore, Mrs. Collin has 49 apples left after using 2/5 of them for baking a pie and 1/4 of them for making jam.
To find out how many apples Mrs. Collin has left, we need to subtract the number of apples she used to bake a pie and make jam from the total number of apples she had initially.
Let's start by calculating the number of apples she used to bake a pie. Mrs. Collin used 2/5 of the 140 apples for the pie. To find this number, we need to multiply the total number of apples by 2/5:
Apples used for the pie = 140 * 2/5 = 56 apples
Now let's calculate the number of apples she used to make jam. Mrs. Collin used 1/4 of the 140 apples for the jam. To find this number, we need to multiply the total number of apples by 1/4:
Apples used for the jam = 140 * 1/4 = 35 apples
To find out the number of apples Mrs. Collin has left, we subtract the number of apples used for the pie and jam from the total number of apples:
Apples left = Total number of apples - Apples used for pie - Apples used for jam
= 140 - 56 - 35
= 49 apples
Therefore, Mrs. Collin has 49 apples left.
2/5 + 1/4 = 8/20 + 5/20 = 13/20
20/20 - 13/20 = 7/20
7/20 * 140 = ?