I am guessing this is 3 and 4/5ths times 15
If this is the case we can convert 3 4/5 to an improper fraction by multiplying 3 times the bottom (denominator) number and adding it to the top (numerator) number
3 times 5 is 15
15 plus 4 is 19
19/5
we can also take 15 and make it a fraction by putting it over 1
Our problem can be written like this
19 15 285
---- x ----- = --------
5 1 5
285/5 can be converted into a whole number as 5 goes into 285. . . 57 times
answer is either
285/5 or 57