the ratio of numbers is 3 : 4 and their h . c . f is 3 . their l . c . m is :
"let the numbers be 3 x and 4 x . then their h . c . f = x . so , x = 3 . so , the numbers are 9 and 12 . l . c . m of 9 and 12 = 36 . answer : c"
lcm(multiply(3, 3), multiply(4, 3))