A basket of fruit has 10 oranges,12 apples, and 18 peaches.Express in simplest form the fraction of fruit that are oranges.

To find the fraction of fruit that are oranges, we need to calculate the ratio of the number of oranges to the total number of fruit.

First, we add up the number of oranges, apples, and peaches to find the total number of fruit:
10 oranges + 12 apples + 18 peaches = 40 fruit

Now, we can express the fraction of fruit that are oranges by dividing the number of oranges by the total number of fruit:
10 oranges / 40 fruit = 1/4

Therefore, the fraction of fruit that are oranges is 1/4.

10 + 12 + 18 = 40

10/40 = 1/4