wstawiam za koleshke: Oblicz: / - kreska ułamkowa. 4 razy 3/4 5 razy 2/15 5/6 razy 9 7/12 razy 8 6 razy 2 i 3/4 7 razy 5 i 3/14 4 i 17/15 razy 6 2 i 5/24 razy 18

4 razy 3/4 = 4 * 3/4 = 3 5 razy 2/15 = 5 * 2/15 = 2/3 5/6 razy 9 = 5/6 * 9 = 5/2 * 3 = 15/2 = 7 1/2 7/12 razy 8 = 7/12 * 8 = 7/3 * 2 = 14/3 = 4 2/3 6 razy 2 3/4 = 6 * 2 3/4 =6 * 11/3 = 2 * 11 = 22 7 razy 5 3/14 = 7 * 5 3/14 = 7 * 73/14 = 73/2 = 36 1/2 4 i 17/15 razy 6 = 77/15 * 6 = 462/15 = 30 4/5 2 i 5/24 razy 18 = 53/24 * 18 = 53/4 * 3 = 159/4 = 39 3/4