Question 1052278
 Find the number whose third, fourth and fifth parts added together equals 47 
:
{{{1/3}}}x + {{{1/4}}}x + {{{1/5}}}x = 47
multiply by the least common denominator, 60, cancel the denominators
20x + 15x + 12x = 60(47)
47x = 2820
x = 2820/47
x = 60 is the number