15.7 rounded to the nearest tenth

To round 15.7 to the nearest tenth, first look at the number in the tenth place, which is 7 then look one place to the right for the rounding digit, which is 0. If the number is greater than 5 or equal to 5, round it up. If the number is smaller than 5, round it down.

In this case, 0 is smaller than 5, hence, 15.7 rounded to the nearest tenth is: 15.7