The LCM is: 504
42 = 2 x 3 x 7 72 = 23 x 32 84 = 22 x 3 x 7
3 x 28 = 84
588 84 = 22 x 3 x 7 294 = 2 x 3 x 72 lcm = 22 x 3 x 72 = 588
y=84-72=12 z=84-52=32 x=84-12-32=40
12, 24, 36, 48, 60, 72, 84, 96, 108, 120 14, 28, 42, 56, 70, 84 84 : 14 x 6 : 12 x 7 84 = LCM
The LCM is: 504
Yes. 84 = 3 X 28.
42 = 2 x 3 x 7 72 = 23 x 32 84 = 22 x 3 x 7
3 x 28 = 84
588 84 = 22 x 3 x 7 294 = 2 x 3 x 72 lcm = 22 x 3 x 72 = 588
2 x 2 x 7 = 28 2 x 3 x 7 = 42 2 x 2 x 3 x 7 = 84, the LCM
84 Very Hard (coughs)
y=84-72=12 z=84-52=32 x=84-12-32=40
72 x 84
Multiplication of fractions. 6/7 X 84/1 Cancel down by '7' 6/1 X 12/1 = 72/1 = 72 , The '1' is trivial .
3528 28 = 22 x 7 72 = 23 x 32 98 = 2 x 72 lcm = 23 x 32 x 72 = 3528