Question

what is the lcm for 6(y-1), 9-9y
@tgawade @satellite73

Answer 1

Do you know what is LCM ?

Answer 2

least common multiple

Answer 3

Correct !! So we have 6 * (y-1) & if we factor out -9 from 9 - 9y what is remain?

Answer 4

y

Answer 5

please check it 9 - 9y so -9 (y - 1) right ?

Answer 6

yea

Answer 7

So we have 6 *(y-1) & -9 * (y - 1) so what would be the lcm?

Answer 8

Here also find lcm of 6 & -9

Answer 9

lcm = common factor * uncommon factor
So can you tell me what are the factors of 6 = ---------------?
& 9 = ---------------?

Answer 10

6 :) 1,2,3
9:) 1,3,3 ritte

Answer 11

So common factor = ----------------?
& uncommon factor =--------------------?

Answer 12

commom factor = 3 & uncommon = 3*2 So LCD = 3*3*2 = 18 okay ?

Answer 13

yea

Answer 14

LCM=18

Answer 15

So - 18*(y-1) is lcm

Answer 16

we forgot -ve sign