gary bought 2lbs of nails for a project. he already had 0.75 lbs. if he uses 1 2/5 lbs of nails, how many lbs of nails does he left ?
To find out how many pounds of nails Gary has left, we need to add up the pounds of nails he already had and subtract the pounds of nails he used for the project.
Gary already had 0.75 lbs of nails.
He bought an additional 2 lbs of nails.
The total pounds of nails he had was 0.75 + 2 = <<0.75+2=2.75>>2.75 lbs.
Now, he used 1 2/5 lbs = 5/5 + 2/5 = 7/5 lbs of nails.
To find out how many pounds of nails Gary has left, we subtract 7/5 from 2.75:
2.75 - 7/5 = 11/4 - 7/5
To subtract fractions with different denominators, we need to find a common denominator. In this case, the common denominator is 20:
11/4 = 11/4 * 5/5 = 55/20
7/5 = 7/5 * 4/4 = 28/20
Now we subtract the numerators:
55/20 - 28/20 = (55 - 28)/20 = 27/20
So, Gary has 27/20 lbs of nails left.
To find out how many pounds of nails Gary has left, follow these steps:
Step 1: Add the nails Gary already had to the nails he bought.
0.75 lbs + 2 lbs = 2.75 lbs
Step 2: Subtract the nails he used from the total he had.
2.75 lbs - 1 2/5 lbs
To subtract mixed numbers, convert the mixed number to an improper fraction:
1 2/5 = (5 × 1 + 2) / 5 = 7/5
Calculation:
2.75 lbs - 7/5 lbs
To subtract fractions, find a common denominator:
The common denominator of 5 and 5 is 5.
Calculation:
2.75 lbs - 7/5 lbs = 2.75 lbs - (7/5 × 1) = 2.75 lbs - 7/5 lbs
= (5 × 2.75 lbs - 5 × 7/5 lbs) / 5
= (13.75 lbs - 7 lbs) / 5
= 6.75 lbs / 5
Step 3: Divide the numerator by the denominator.
6.75 lbs ÷ 5 = 1.35 lbs
Therefore, Gary has 1.35 pounds of nails left.
To find out how many pounds of nails Gary has left, we need to subtract the amount of nails he uses from the total amount he had.
1. Start with the total amount of nails Gary had:
- Gary bought 2 lbs of nails
- He already had 0.75 lbs of nails
2. Calculate the total amount of nails Gary had:
Total amount of nails = 2 lbs + 0.75 lbs = 2.75 lbs
3. Calculate the amount of nails Gary uses:
- Gary uses 1 2/5 lbs of nails
- Convert 1 2/5 to an improper fraction: 1 2/5 = (5 * 1 + 2) / 5 = 7/5 lbs
4. Subtract the amount of nails used from the total amount Gary had:
Remaining amount of nails = Total amount of nails - Amount of nails used
Remaining amount of nails = 2.75 lbs - 7/5 lbs
5. To subtract fractions, make sure the denominators are the same:
Convert 2.75 lbs to a fraction with a denominator of 5: 2.75 lbs = (5 * 2 + 3) / 5 = 13/5 lbs
6. Subtract the numerator of the fraction:
Remaining amount of nails = 13/5 lbs - 7/5 lbs
Remaining amount of nails = (13 - 7) / 5 lbs
Remaining amount of nails = 6/5 lbs
7. Simplify the fraction:
Remaining amount of nails = 1 1/5 lbs
Therefore, Gary has 1 1/5 lbs of nails left for his project.