Well if you Divide 8 into 100 you will get 12 with a remainder of 5.
645 divide by 43 in steps no remainder = 15
15
5
The LCM of 8, 12 and 15 is 120 because 120 is the smallest whole number that 8, 12 and 15 will all divide into evenly with no remainder.
The remainder is 3 5 x 3 = 15 18 - 15 = 3
15 divided by 7 = 2 R1 (Two remainder one) As a decimal, it is 2.14285714
3 with a remainder of 15 or 3.4286
15
1 and 5.
15 ÷ 2 = 7 with remainder of 1, and 15 ÷ 7 = 2 with remainder of 1, if that's what you are looking for.
It has to be 14.If you ended up with a remainder of 15 or higher then you wouldn't have done your division correctly!