The value of the digit 3 is 30, so 3 is 1/10th.
Hope this helps
This question is about the GREATEST COMMON FACTOR.
Supper Dishes: 5 10 15 20 25 30 35
Trash: 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35
Vacuums the House: 7 14 21 28 35 42
He will have to do all three chores on the same day every 35 day.