Find each sum or difference.
1. -1/2+1/3
A.-1/6
B.-1/3**
C.2/3
D.1/6
2. -3 1/5+(-6 1/2)
A.-3 2/7**
B.-3 7/10
C.-9 2/7
D.-9 7/10
3.5/8-(-2/8)
A.-3/8
B.-7/8
C.3/8
D.7/8**
4.-9/10-2/5
A.-1 3/10
B.-1 1/10
C.-7/10**
D.-5/10
5.6 3/5-(-2 1/5)
A.-8 2/5
B.-4 2/5
C.4 2/5
D.8 4/5
I'm not so sure about #5.
Not really but I can try.
I keep getting an answer that's not one of the answers.
6 3/5-(-2 1/5)
= 6 3/5 + 2 1/5
= 8 4/5
when you are getting a wrong answer, it's best to show your work.
Dont listen to Otaku@Heart
1.A
2.D
3.D
4.A
5.D
To find each sum or difference, you need to add or subtract the given fractions or mixed numbers.
1. -1/2 + 1/3:
To add these fractions, you need to find a common denominator, which in this case is 6.
Multiply -1/2 by 3/3 to get -3/6, and multiply 1/3 by 2/2 to get 2/6.
Now, you can add the fractions: -3/6 + 2/6 = -1/6.
So the answer is A. -1/6.
2. -3 1/5 + (-6 1/2):
First, convert the mixed numbers into improper fractions.
-3 1/5 can be written as -16/5, and -6 1/2 can be written as -13/2.
To add these fractions, find a common denominator, which is 10 in this case.
Multiply -16/5 by 2/2 to get -32/10, and multiply -13/2 by 5/5 to get -65/10.
Now, you can add the fractions: -32/10 + (-65/10) = -97/10.
Simplify the result to get -9 7/10.
So the answer is D. -9 7/10.
3. 5/8 - (-2/8):
When subtracting fractions, you change the sign of the second fraction and then add them.
So 5/8 - (-2/8) becomes 5/8 + 2/8.
Add the fractions: 5/8 + 2/8 = 7/8.
So the answer is D. 7/8.
4. -9/10 - 2/5:
To subtract fractions, you need to find a common denominator. In this case, it is 10.
Multiply -9/10 by 1/1 to get -9/10, and multiply 2/5 by 2/2 to get 4/10.
Subtract the fractions: -9/10 - 4/10 = -13/10.
Simplify the result to get -1 3/10.
So the answer is A. -1 3/10.
5. 6 3/5 - (-2 1/5):
First, convert the mixed numbers into improper fractions.
6 3/5 can be written as 33/5, and -2 1/5 can be written as -11/5.
To subtract these fractions, you change the sign of the second fraction and then add them.
So 33/5 - (-11/5) becomes 33/5 + 11/5.
Add the fractions: 33/5 + 11/5 = 44/5.
Simplify the result to get 8 4/5.
So the answer is D. 8 4/5.
#5 is 6 3/5-(-2 1/5)
Any idea how to simplify this problem?