Question

find the rational number that shouldbe multiplied with-3/13 to get 39

Answer 1

Let the rational no. be x
Other no. = -3/13
ATQ,
x * -3/13 = 39
13x -3/13 = 39
13x - 3 = 507
13x = 510
x = 39.2 (approx)

Therefore 39.2 is the required rational no.

HOPE IT HELPS...