3.NF.2. Understand a fraction as a number on the number line; represent fractions on a number line diagram. × Placing Fractions and Decimals on a Number Line Place fractions and decimals on a number line. A wide choice of levels including proper fractions, improper fractions and mixed numbers. For more resources involving fractions and decimals click here. Game availability: Online in Flash format Close Placing Fractions and Decimals on a Number Line ?