Pre Algebra Homework.?

Question

5. True or False. The least common denominator of the fractions numerator 2 divided by denominator 6, numerator 7 divided by denominator 9 is 54.

12. Find the least common multiple of 2 and 9.

13. Find the least common multiple of the numbers 8, 28, and 48.

Answer 1

ignore the silly responses above. Here's your answer;

5). True

12). 18

13). 336

Answer 2

my god, its not that hard..wow it took me like 5 minutes to do this..do your own homework.

Answer 3

5. 2/6 7/9

LCD=18

12. LCM of 2 and 9.

multiples of 2:

2,4,6,8,10,12,14,16,18,20

Multiples of 9:

9,18,27...

LCM=18

13. LCM of 8,28 and 38:

Multiples of 8:

8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 114, 122, 130,138, 146, 154, 162, 170, 178, 186, 194, 202

Multiples of 28:

28, 56, 84, 112, 140, 168, 196, 224, 252

Multiples of 48:

48, 96, 144, 192, 240