Least Common Denominator
What is the LCD of 4 and 6?
12
5/12 + 1/6
7/12
Write 6/8 in lowest terms.
3/4
Prime factorization of 18
2 × 3 × 3
Write 9/4 as a mixed number.
2 1/4
What is the LCD of 3 and 8?
24
3/5 – 1/10
1/2
Write 14/20 in lowest terms.
7/10
Prime factorization of 88
2 × 2 × 2 × 11
Write 18/5 as a mixed number.
3 3/5
What is the LCD of 5 and 10?
10
4/5 – 2/3
2/15
Write 36/51 in lowest terms.
12/17
Prime factorization of 99
3 × 3 × 11
Write 4 2/3 as an improper fraction.
14/3
What is the LCD of 7 and 3?
21
5/12 + 7/8
1 5/24
Write 3/9 in lowest terms.
1/3
Is 31 prime or composite?
Prime
Write 6 1/8 as an improper fraction.
49/8
What is the LCD of 12 and 8?
24
3/4 + 5/6
1 7/12
Write 18/24 in lowest terms.
3/4
Is 25 prime or composite?
Composite
Write 24/7 as a mixed number.
3 3/7