Question

Решить по действиям. 5 4/7 - (2,5+1 1/3): 1/3

Answer 1

= - 5 13/14

1)  2,5+1 1/3=2 1/2+1 1/3=2 3/6+1 2/6=3 5/6
2)   3 5/6 : 1/3=23/6 * 3=23/2=11 1/2
3)   5 4/7 - 11 1/2=5 8/14 - 11 7/14= - 5 13/14

Answer 2

Решаем в скобках                                                                                                 (2.5+11/3)=2.5/10+11/3=2.1/2+11/3=Знаменатель=2.3/6+1.2/6=3.5/6-2=3.5/6:1/3=Дробь=(6*3+5)/6:1/3=23/2=11.1/2=5.4/7=5 8/14-11 7/14= -5 13/14 - ответ