Find Lowest Common Denominator:
A.). 1 / 6 and 7 / 8 ===> LCD = 24
Rewriting input as fractions if necessary:
For the Denominators ( 6, 8 ), LCM ==> 24
Therefore, The LCD, is ==> 24
Rewriting the Original inputs as Equivalent Fractions with the LCD:
4/24; 21 / 24
B.). 3 ⁄ 4 and 7 ⁄ 10 ===> LCD = 20
Rewriting input as fractions if necessary:
3 / 4, 7 / 10
For the Denominators ( 4, 10 ), The LCM ===> 20
Therefore, The LCD ==> 20
Rewriting the original inputs as equivalent fractions with the LCD:
15 / 20; 14 / 20
C.). 7 ⁄ 12, 3 ⁄ 8 and 11 ⁄ 36 ====> LCD = 72
Rewriting input as fractions if necessary:
7 / 12, 3 / 8, 11 / 36
For the Denominators ( 12, 8, 36 ), The LCM ===> 72
Therefore, The LCD ==> 72
Rewriting the original inputs as equivalent fractions with the LCD:
42 / 72; 27 / 72; 22 / 72
D.). 8 ⁄ 15, 11 ⁄ 30 and 3 ⁄ 5 =====> LCD = 30
Rewriting input as fractions if necessary:
8 / 15; 11 / 30; 3 / 5
For the Denominators ( 15, 30, 5 ), The LCM ===> 30
Therefore, The LCD ==> 30
Rewriting the original inputs as equivalent fractions with the LCD:
16 /30; 11 / 30; 18 / 30
Therefore, Answers are:
A.). 1 / 6 and 7 / 8 ===> LCD = 24
B.). 3 ⁄ 4 and 7 ⁄ 10 ===> LCD = 20
C.). 7 ⁄ 12, 3 ⁄ 8 and 11 ⁄ 36 ====> LCD = 72
D.). 8 ⁄ 15, 11 ⁄ 30 and 3 ⁄ 5 =====> LCD = 30
Hope that helps!!!! : )
