Subtract Fractions using Models Instructions Click the link to play the game 1. Tap to begin 2. Use to answer. 3. Tap the button to show your work. You can use emojis as pictures to help! 4. Tap the button to explain your thinking! 5. Tap to submit. Improve your child's proficiency in fractions with this game. There are misconceptions that are often associated with concepts like subtraction of fractions, but those can easily be put on the back burner with regular and targeted practice. The game aims to build proficiency in subtraction of fractions using a linear model of fractions as visual help.