5 : 1 / 3 how do u solve

Answer: 15

You would do the Reciprocal or Multiplicative Inverse.

You can never divide by a fraction. So instead, you find the recriprocal which is pretty much just flipping the numbers and operations. So instead of dividing, we would multiply. We'd also then flip 1/3 and say its 3/1.

Now your equation is * 5 x 3/1 * or * 5 x 3*. Thats 15.