Oblicz: 4 i 1/2 x 18 5 i 2/3 x 24 6 i 3/4 x 15 2 i 1/4 x 5 x 6 2x8 i 2/5 x20 5 i 4/4 x 21 x 2 6 i 1/8 x 5 x 10

4 1/2 x 18 = 9/2 * 18 = 9 * 9 = 81 5 2/3 x 24 = 17/3 * 24 = 17 * 8 = 136 6 3/4 x 15 = 27/4 * 15 = 405/4 = 101 1/4 2 1/4 x 5 x 6 = 9/4 * 30 = 9/2 * 15 = 135/2 = 67 1/2 2 x 8 2/5 x 20 = 2 * 42/5 * 20 = 2 * 42 * 4 = 42 * 8 = 336 5 4/4 x 21 x 2 = 6 * 21 * 2 = 21 * 12 = 252 6 1/8 x 5 x 10  = 49/8 * 50 = 49/4 * 25 = 306 1/4 pozdrawiam