Add/Sub Fractions

Use equivalent fractions as a strategy to add and subtract fractions. 

NC.5.NF.1 

• Add and subtract fractions, including mixed numbers, with unlike denominators using related fractions: halves, fourths and eighths; thirds, sixths, and twelfths; fifths, tenths, and hundredths. 

• Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. 

• Solve one-and two-step word problems in context using area and length models to develop the algorithm. Represent the word problem in an equation.