Odpowiedź:
3/7 x 0,14= 3/7 * 14/100 = 3/7 * 7/50 = 3/50
1 5/9 : 1,4 = 14/9 : 14/10 = 14/9 * 10/14 = 10/9 = 1 1/9
2 3/4+2/3= 2 9/12 + 8/12 = 2 17/12 = 2 5/12
1 4/5 - 3/10= 1 8/10 - 3/10 = 1 5/10 = 1 1/2
1 3/7 x 2 3/10= 10/7 * 23/10 = 23/7 = 3 2/7
2 1/5 : 1 1/10 = 11/5 : 11/10 = 11/5 * 10/11 = 2
Szczegółowe wyjaśnienie:
