LCD Practice
Create equivalent fractions with common denominators for each pair of fractions.
Remember to find the least common multiple to use as the common denominator.
Example:
1
3
and
2
5
Step 1: Find LCM: 2: 2
5:
LCD:
5
2 x 5 = 10
Step 2: Make equivalent fractions using the LCD:
1 5 5
x 
2 5 10
3 2 6
x 
5 2 10
1.
2
2
and
3
6
2.
1
1
and
4
8
3.
5.
2
3
and
5
10
6.
3
2
and
7
3
7.
1
2
and
2
3
4.
3
2
and
4
5
8.
3
1
and
8
3
1
3
and
2
12
LCD Practice
9.
2
3
and
15
5
10.
5
3
and
16
8
11.
7
3
and
12
4
12.
3
5
and
8
12