Question

Scrieti fractiile urmatoare ca diferenta de doua fractii cu acelasi numitor. 3pe8 ; 2pe7;5pe9;8pe12;9pe21; . descoperiti mai multe posibilitati

Answer 1

8/8 - 5/8 = 3/8, 11/8 - 8/8 = 3/8, 15/8-12/8 = 3/8
10/7-8/7 = 2/7, 5/7 - 3/7 = 2/7,  16/7 - 14/7 = 2/7
10/9-5/9 = 5/9, 15/9 - 10/9 = 5/9, 18/9-13/9 = 5/9
10/12 - 2/12 = 8/12, 19/12 - 11/12 = 8/12, 24/12 = 16/12 = 8/12
10/21-1/21 = 9/21, 25/21 -16/21 = 9/21. 18/21-9/21 = 9/21