a) 1/2 razy 2/3 razy 3/5 = = 1/3 * 3/5 = = 1/5================================= b) 3 całe i 1/4 razy 4/5 razy 15/26 = = 13/4 * 4/5 * 15/26 = = 13/5 * 15/26 = = 3/2 = = 1,5 =================================c) 1/8 razy 1 cała i 1/5 razy 1/2 = = 1/8 * 6/5 * 1/2 = = 3/20 * 1/2 = = 3/40 ===================================================d) 3 całe i 3/5 razy 2/3 razy 3 całe i 3/4 razy 1 cała i 1/9 = = 18/5 * 2/3 * 15/4 * 10/9 = = 12/5 * 15/4 * 10/9 = = 12 * 10/9 = = 40/3 = = 13 i 1/3 =========================================================e) 3 całe i 2/3 razy 1 cała i 3/5 razy 2/11 razy 6 całych i 1/4 razy 1/10 razy 4 całe i 2/7 = = 11/3 * 8/5 * 2/11 * 25/4 * 1/10 * 30/7 = = 88/15 * 2/11 * 25/4 * 1/10 * 30/7 = = 16/15 * 25/4 * 1/10 * 30/7 = = 20/3 * 1/10 * 30/7 == 2/3 * 30/7 = = 20/7 = = 2 i 6/7
2 i 2/5*1 i 2/3-1 i 5/6=12/5*5/3-11/6=4-11/6=44/6-11/6=33/6=5 i 3/6=5 i 1/2 4 i 7/8-1 i 1/3*1 i 1/8=4 i 7/8-4/3*9/8=4 i 7/8-3/2=4 i 7/8-1 i 1/2=4 i 7/8 - 1 i 4/8=3 i 3/8
