LCD
find the lowest common denominator
1/2 and 3/6
2: 2,4,6
6: 6,12
6
1/2 = ?/6
1/2 = 3/6
1/2 + 1/2 =
1/2 + 1/2 = 2/2
4/2
Show your diagram.
Simplify the fraction 2/4
1/2
Divide both the numerator and denominator by 2.
find the lowest common denominator
5/8 and 3/6
8: 8,16,24
6: 6,12,18,24
24
2/4 = ?/8
2/4 = 4/8
1/2 + 2/4 =
2/4 + 2/4 = 4/4
1/3
Draw a diagram.
Show your diagram.
Simplify the fraction
6/15
2/5
Divide both the numerator and denominator by 3.
find the lowest common denominator
9/15 and 2/6
15: 15,30,45
6: 6,12,18,24,30
30
4/6 = ?/12
4/6 = 8/12
1/3 + 1/5 =
5/15 + 3/15= 8/15
1/1
How many whole parts?
Draw a diagram.
1 whole
Show your diagram.
Simplify the fraction 15/50
3/10
Divide both the numerator and denominator by 5.
find the lowest common denominator
3/7 and 1/5
7: 7,14,21,28,35
5: 5,10,15,20,25,30,35
35
4/6 = ?/18
4/6 = 12/18
1/3 + 1/7 =
7/21 + 3/21 = 10/21
15/3
Draw the diagram.
How many whole parts?
5 whole parts
Show your diagram(s).
Simplify the fraction 8/48
1/6
Divide both the numerator and denominator by 8.
find the lowest common denominator
3/14 and 3/4
14: 14,28,42
4: 4,8,12,16,20,24,28
28
4/6 = ?/36
4/6 = 24/36
5/18 + 4/9 =
10/36 + 16/36= 26/36
32/4
Draw the diagram.
How many whole parts?
8 whole parts.
Show your diagram.
Simplify the fraction 18/72
1/4
You can divide by 2 to get 9/36, then divide by 3 to get 3/12, finally divide by 3 to get 1/4.
You can also divide both the numerator and denominator by 18 to get 1/4.