It would be nice to have an interaction specifically for inputting fractions. Currently, to input a fraction, learners must type something like "5 3/4", which is not very friendly as fractions are usually being represented in the exploration with the numerator on top and the denominator on bottom. Having the space between the whole number and the fraction is also sort of ambiguous. A fraction input should be allowed to have at most three fields: whole number, numerator, and denominator.