Сократите дробь 6/40 32/72 16/72 63/91
6/40=3/20 32/72=4/9 16/72=2/9 63/91=9/13
6/40=3/20 32/72= 8/18 16/72=4/18 63/91= 1 8/63 ( одна целая , 8/63)