Сравните: a) 7/12 - 1/4 б) 22/27 - 5/9 B) 3/10 - 43/10000 г) 31/100 - 21/1000

7/12-1/4=7/12-3/12=4/12=1/322/27-5/9=22/27-15/27=7/273/10-43/10000=3000/10000-43/10000=2957/1000031/100-21/1000=310/1000-21/1000=289/1000