Try another version of this question Box 1: Enter your answer as a reduced fraction (like 5/3, not 10/6) or as an integer (like 4 or -2)
Simplify the given expression. Enter your answer as an integer or a reduced fraction. Do not use mixed numbers.
`(1/7-1/4) divide 13/28 =`
Do not enter mixed numbers
Enter DNE for Does Not Exist, oo for Infinity `-3/13`