The groups of unit fractions can be combined to build a non-unit fraction. Match the unit fractions with the non-unit fractions they build. 1 third,1 third 1 over 8,1 over 8 1 third,1 third,1 third 1 over 6,1 over 6,1 over 6,1 over 6 a. 2 over 8 b. 4 over 6 c. 2 over 3 d. 3 over 3