What is 5 12ths of 378?
5/12 of 378 is found by multiplication. You multiply 378 by 5
then divide by 12.
So the first step gives us 1890 and then when we divide we have
315/2 which is 13.125.
It sometimes helps to not multiply such big numbers. You might
note that 378 divided by 12 is 63/2, then we just need to multiply
63x5 which is 315.