Multiply and divide rational numbers

This Desmos AB consists of six auto-scoring questions with the following depths of knowledge:

The last question is an Open Middle that challenges students to create a quotient of fractions (positive and negative) with the greatest possible value. Quotients that do not balance the equation result in the on-screen feedback "[Fraction from the LHS] and [fraction from RHS] are not equivalent." Quotients that do balance the equation but do not create the greatest possible value elicit "That equation is correct.... but there is a larger quotient that will also balance the equation." Quotients that both balance the equation and create the greatest possible value confirm to students "That is 🎉 the largest possible value 🎉"