Sherman goes golfing every 6th day and Brad goes every 7th day,
If Sherman and Brad both went golfing today, how many days until they will go golfing on the same day again?
Just add 6 plus 6 and on and on. Do the same thing with 7. Just like: 7 + 7 = 14 and 6+6 =12. They are not the same so we keep going. 14+7=18 and 12 + 6= 18. They are the same. So there. You're Welcome.