− | This program can be modified for 1/3 and 2/3 and with more work it could be used for the Caacupé abacus. | + | This program can be modified for 1/3 and 2/3 (and with more work it could be used for the Caacupé abacus). Circled below, the program above has 0.5 replaced with 1/3 to find the ways of making 1/3 |