Odpowiedź:
zad 1
3 1/3 - 1 3/4 = 3 4/12 - 1 9/12 = 2 16/12 - 1 9/12 = 1 7/12
0,48 * 2,7 = 48/100 * 27/10 = 1296/1000 = 1,296
2 1/5 * 1 1/7 = 11/5 * 8/7 = 88/35 = 2 18/35
24,53 : 1,8 = 2453/10 : 18/10 = 2453/100 * 10/18 = 2453/10 * 1/18 =
= 2453/180 = 13 113/180 = 13,62(7)
2 5/8 : 2 1/3 = 21/8 : 7/3 = 21/8 * 3/7 = 3/8 * 3 = 9/8 = 1 1/8
zad 2
1 1/4(2 1/3 + 1 2/5) = 1 1/4(2 5/15 + 1 6/15) = 1 1/4 * 3 11/15 = 5/4 * 56/15 =
= 1 * 14/3 = 14/3 = 3 2/3