Example
1⁄2 - 2⁄5
Step 1
Find the lowest common denominator.
1⁄2 + 2⁄5
Both 2 and 5 can divide into 10.
Step 2
Convert both fractions.
1⁄2 is the same as 5⁄10
2⁄5 is the same as 4⁄10
