LCM AND LCD
Give an example of a number and its first five multiples.
Answers will vary.
Reduce to simplest form:
3/6
1/2
Convert 3 1/2 to an improper fraction.
7/2
1/8 + 3/4
7/8
What is the lowest common multiple/denominator for 3 and 5.
15 is the LCM/LCD for 3 and 5.
Reduce to simplest form:
5/15
1/3
Convert 5 7/8 to an improper fraction.
47/8
7/12 - 1/6
5/12
List the first four multiples for 4 and 6.
What is the LCD for these numbers?
4: 4, 8, 12, 16
6: 6, 12, 18, 24
LCD: 12
Reduce to simplest form:
3/39
1/13
Simplify 42/7
6
4/12 X 3/8
12/96 = 1/8
List the multiples for numbers 12 and 15 until you find the LCD.
What is the LCD?
12: 12, 24, 36, 48, 60
15: 15, 30, 45, 60
LCD: 60
Reduce to simplest form:
24/48
1/2
Simplify 43/8
5 3/8
3/5 divided by 2/8
24/10 = 2 4/10
Find the LCD and then convert the unlike fractions to like fractions.
3/5 4/7
LCD: 35
21/35 20/35
Reduce the improper fraction to simplest form:
17/3
5 2/3
Simplify 142/9
15 7/9
2 3/4 X 1/2
11/8 =1 3/8