Open Middle®
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.)”