Directions: Using the integers 1 to 10 at most one time each, fill in the boxes so that the sum is equal to 1.

### Hint

What three unit fractions add up to exactly 1 whole? What numbers would you use for the denominators? Why?

### Answer

There are many solutions. Here are some possible solutions:

1/6 + 4/8 + 3/9

3/6 + 2/8 + 1/4

1/6 + 4/8 + 3/9

3/6 + 2/8 + 1/4

Source: Joshua Nelson

Our class came up with two different solutions:

1.) 1/4 + 2/8 + 5/10

2.) 3/6 + 1/4 + 2/8

Sorry, I forget it.is “2.)”