180
6
6.0667
4.2857
6
30
180 / 3 / 2 / 1 = 30
so 100% is 180 therefore 10% is 18 (180 divided by 10). this means that 30% will be 3 multiplied by 18 which is 54. 30% of 180 is 54.
20
0.0333
6
it is quite easy actually... 30, 36 divided by a random number (in this case I use number 6 as it can divide both numbers without leaving any decimals) =5, 6 as 5, 6 cannot be divided any further by any same number, you multiply the remaining number (5 & 6) with the number you used to divide 30 & 36 6x5x6= 180 Check: 180/36= 5 180/30= 6 multiple of 36: 36, 72, 108, 144, 180... multiple of 30: 30, 60, 90, 120, 150, 180... So, the lowest common multiple of 30 and 36 is 180.