Odpowiedź :
1 2/3 • 4 2/5 = 5/3 • 22/5 = 22/3 = 7 1/3
4 8/15 : 3 2/5 = 68/15 • 5/17 = 68/51 =
= 1 17/51
4 8/15 : 3 2/5 = 68/15 • 5/17 = 68/51 =
= 1 17/51
Szczegółowe wyjaśnienie:
1 2/3 * 4 2/5 = 5/3 * 22/5 = 22/3 = 7 1/3
4 8/15 : 3 2/5 = 62/15 : 17/5 = 62/15 * 5/17 = 62/51 = 1 11/51