Odpowiedź:
a) 3/4 * 6 = 3/4 * 6/1 = 18/4 = 4 2/4
3 * 2/3 = 3/1 * 2/3 = 6/3 = 2
b) 4 * 5/6 = 4/1 * 5/6 = 20/6 = 3 2/6
5/14 * 21 = 5/14 * 21/1 = 105/14 = 7 7/14
c) 2 1/2 * 6 = 5/2 * 6/1 = 30/2 = 15
5 * 1 3/10 = 5/1 * 13/10 = 65/10 = 6 5/10
d) 10 * 1 1/4 = 10/1 * 5/4 = 50/4 = 12 2/4
2 3/8 * 4 = 19/8 * 4/1 = 76/8 = 9 4/8
2 zad.
a) 2/3 * 1/4 = 2/12
5/8 *2/5 = 10/40
b) 1/2 * 5/6= 5/12
5/6 * 9/10 = 45/60
c) 3/4 * 2 1/3 = 3/4 * 7/3 = 21/12 = 1 9/12
3 1/3 * 2/10 = 10/3 * 2/10 = 20/30
d) 1 2/3 * 1 4/5 = 5/3 * 9/5 = 45/15 = 3
2 1/4 * 1 3/5 = 9/4 * 8/5 = 72/20 = 3 12/20
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