4/44*42/64*40/11 = 105/484
0.2188
LCM for 40 and 105 is 840.
Subtracting 40 percent from 105 gives 105 x (1 - (40/100)) = 105 x 0.6 = 63
105 can be divided by 1, 3, 5, 7, 15, 21, 35, 105.
40% -- 105/260 * 100 = 40%
105
105
105
105
105
The LCM of 40 and 105 is 840 You could check on a calculator you can find that there is no other answer 40*21=840 105*8=840