Вычислите дроби :5/12 + 1/3 =.... 11/24 - 3/8 =..... 5/6 + 1/24=....... 57/1000 + 9/10=...
5/12+1/3=5/12+4/12=9/12=3/4 11/24-3/8=11/24-9/24=2/24=1/12 5/6+1/24=20/24+1/24=21/24=7/8 57/1000+9/10=57/1000+900/1000=957/1000