Open Middle®
Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to create a true statement.
Hint
How does the numerator change when the value increases/decreases? How does the denominator change when the value increases/decreases?
Answer
There are many possible answers, but all should have the fraction with the least value on the left and increase in value to the right. One example is 1/9 < 2/8 < 3/7
Source: Robert Kaplinsky
If you use all the digits….
54/3 < 76/2 < 98/1 OR
82/91 < 6/7 < 5/4
If you only use 6 digits…
6/7<8/9<5/3