Question

What is the LCD of 5/12 and -9/16 ?

Answer 1

you can find the LCD of 2 numbers from their prime factors
12 = 2*2*3
16 = 2*2*2*2

Answer 2

where you have duplicated factors - here we have 2 pairs of '2'
we only include one of the duplicates
so the lcd = 2*2*2*2*3 = 48 (we include all the other numbers)

Answer 3

cool ok so is the answer 48

Answer 4

yes - do you understand the reasoning?

Answer 5

yes very will thank you nobody was help me today

Answer 6

yw

Answer 7

what

Answer 8

thats means you are welcome

Answer 9

ohh np

Answer 10

another example:
LCD of 6 and 9

6 = 2*3
9 = 3*3

- only include one of the duplicate 3's
so its 2*3*3 = 18

Answer 11

uhh cool math is strange so times

Answer 12

and if you have say 3 numbers then you include only 1 of a triplicate

6, 9 and 12

6 = 2*3
9 = 3*3
12 = 2*2*3

there is a pair of 2's and a trio of 3's so you only include 1 of these 3's and 1 of the 2's

Answer 13

What is the LCD of 5/6 and -3/8 ?

Answer 14

24

Answer 15

6 = 2*3
8 = 2*2*2

what do you think?

Answer 16

yes:- 2*2*2*3

Answer 17

ok

Answer 18

good luck

Answer 19

thanx