I use math all the time in the real world. Whenever I am cooking or baking, and need to make a small batch of somthing, I divide fractions to do it. Say the recipie calls for a cup of flour but I am making a half batch I divide it by 1/2 to cut it in half. Same with 1/2 cup of flour. I divide it by 1/4 to cut it in half.
I went shopping once for ingredients of a cake, but i didn't know what my finale price would be. So i estimated what the total cost could be, then i took all the prices and added them up then divided the price by how many ingredients i got to find the average and it was pretty close to my estimate. So math can help when you go shopping. (Sorry if how i find my prices is weird, i kinda just stand in one spot for at least 5 - 8 mins trying to find my price)