What is the difference between adding and subtracting fractions?

Answer 1

to add a fraction, get a common denominator, then add the numerators.

example:

2/10+4/5

first get common denominators

2/10+8/10

then add the numerators

10/10

(simplify)

1

to subtract from a fraction, get common denominator, then subtract the numerators.

example:

4/5-2/10

first get common denominators

8/10-2/10

then subtract the numerators

6/10

(simplify)

3/5