What is agonsa?

Answer 1

Solve using AGONSA.

David read a book over two days. On the first day, he read 2/5 chapters, and on the second day, he read 4/6 of a chapter. How many chapters did David read in total?

Answer 2

Norma spends her free time playing piano. Each day she spends ¾ hour. When a visitor came in, she has already played for ¼ hour. To complete her schedule, how much longer does she need to play?

Answer 3

7/8