1. 5/10 - 3/10

A 1/5
B 8/10
C 42/5
D 1/10
Please help.

9 answers

5 dozen - 3 dozen = 2 dozen
5 books - 3 books = 2 books
so,
5/10 - 3/10 = 2/10
now, which answer is equal to 2/10 ?

As for the other answers, I guess I'd have to see the other questions, yeah?
1/10?
2. 1/2 + 3/4
A 2/3
B 4/6
C 1 2/4
D 13/24
3. 1/6 + 3/8
A 4/6
B 4/8
C 4/14
D 13/24
4.
A 11/24
B 2/24
C 2/8
D 2/12
I forgot the question for 4 is 7/8 - 5/12
5. The sum of two numbers is 7/8. One addend is 3/4. What is the other?
A 4/4
B 1/8
C 1/4
D 2/8
A 1/5
A is correct for the first one.

What do you get for the others?
To add fractions, you always need to use a common denominator.