Title: 5. Combinations of arithmetic operations on fractions
Course: Demonstrating STACK (v4.3.7)

Express the following as a single fraction: \[\frac{[value]+[value]}{[value]+[value]}\] =

Be sure to leave your answer as a single fraction in it's simplest form.
Feedback: This question asks for multiple operations on fractions. Just concentrate on one at a time.

Subsitute \(s\) = \([value]\) and \(t\) = \([value]\) into the equation: \[\frac{s^2+2t^2}{3-st}.\]
Be sure to leave your answer as a fraction in it's simplest form.
Feedback: Subsituting \(s\) = \([value]\) and \(t\) = \([value]\) into the equation: \[\frac{s^2+2t^2}{3-st} = \frac{\left([value]\right)^2+2\left([value]\right)^2}{3-\left([value]\right)\times\left([value]\right)} = \frac{[value]+[value]}{3-[value]} = \frac[value][value] = \frac[value][value]\times\frac[value][value] = [value].\]